Home / 38,147.64-52,642.80-21,151.95

Finding the Fourth Proportional to 38,147.64, 52,642.80 and 21,151.95

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Solution

The fourth proportional to 38,147.64, 52,642.80 and 21,151.95 is: 29,189.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,147.64 : 52,642.80 = 21,151.95 : x
  2. Step 2: Convert to fraction form
    38,147.64/52,642.80 = 21,151.95/x
  3. Step 3: Cross multiply
    38,147.64x = 52,642.80 × 21,151.95
  4. Step 4: Simplify right side
    38,147.64x = 1,113,497,873.46
  5. Step 5: Solve for x
    x = 1,113,497,873.46/38,147.64
  6. Step 6: Final answer
    x = 29,189.17

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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.