Home / 30,862.17-42,589.76-16,715.07

Finding the Fourth Proportional to 30,862.17, 42,589.76 and 16,715.07

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Solution

The fourth proportional to 30,862.17, 42,589.76 and 16,715.07 is: 23,066.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,862.17 : 42,589.76 = 16,715.07 : x
  2. Step 2: Convert to fraction form
    30,862.17/42,589.76 = 16,715.07/x
  3. Step 3: Cross multiply
    30,862.17x = 42,589.76 × 16,715.07
  4. Step 4: Simplify right side
    30,862.17x = 711,890,736.11
  5. Step 5: Solve for x
    x = 711,890,736.11/30,862.17
  6. Step 6: Final answer
    x = 23,066.78

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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.