Home / 38,147.93-52,642.04-21,151.19

Finding the Fourth Proportional to 38,147.93, 52,642.04 and 21,151.19

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Solution

The fourth proportional to 38,147.93, 52,642.04 and 21,151.19 is: 29,187.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,147.93 : 52,642.04 = 21,151.19 : x
  2. Step 2: Convert to fraction form
    38,147.93/52,642.04 = 21,151.19/x
  3. Step 3: Cross multiply
    38,147.93x = 52,642.04 × 21,151.19
  4. Step 4: Simplify right side
    38,147.93x = 1,113,441,579.70
  5. Step 5: Solve for x
    x = 1,113,441,579.70/38,147.93
  6. Step 6: Final answer
    x = 29,187.47

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Half scale
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Double scale
Find fourth proportional to 38,148.93, 52,643.42 and 21,152.19
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.