Home / 21,176.74-29,242.47-13,232.53

Finding the Fourth Proportional to 21,176.74, 29,242.47 and 13,232.53

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Solution

The fourth proportional to 21,176.74, 29,242.47 and 13,232.53 is: 18,272.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,176.74 : 29,242.47 = 13,232.53 : x
  2. Step 2: Convert to fraction form
    21,176.74/29,242.47 = 13,232.53/x
  3. Step 3: Cross multiply
    21,176.74x = 29,242.47 × 13,232.53
  4. Step 4: Simplify right side
    21,176.74x = 386,951,861.55
  5. Step 5: Solve for x
    x = 386,951,861.55/21,176.74
  6. Step 6: Final answer
    x = 18,272.49

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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.