Home / 38,153.25-52,656.35-21,386.25

Finding the Fourth Proportional to 38,153.25, 52,656.35 and 21,386.25

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Solution

The fourth proportional to 38,153.25, 52,656.35 and 21,386.25 is: 29,515.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,153.25 : 52,656.35 = 21,386.25 : x
  2. Step 2: Convert to fraction form
    38,153.25/52,656.35 = 21,386.25/x
  3. Step 3: Cross multiply
    38,153.25x = 52,656.35 × 21,386.25
  4. Step 4: Simplify right side
    38,153.25x = 1,126,121,758.26
  5. Step 5: Solve for x
    x = 1,126,121,758.26/38,153.25
  6. Step 6: Final answer
    x = 29,515.75

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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.