Home / 28,717.42-39,633.60-16,142.17

Finding the Fourth Proportional to 28,717.42, 39,633.60 and 16,142.17

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Solution

The fourth proportional to 28,717.42, 39,633.60 and 16,142.17 is: 22,278.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,717.42 : 39,633.60 = 16,142.17 : x
  2. Step 2: Convert to fraction form
    28,717.42/39,633.60 = 16,142.17/x
  3. Step 3: Cross multiply
    28,717.42x = 39,633.60 × 16,142.17
  4. Step 4: Simplify right side
    28,717.42x = 639,772,308.91
  5. Step 5: Solve for x
    x = 639,772,308.91/28,717.42
  6. Step 6: Final answer
    x = 22,278.20

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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.