Home / 30,858.28-42,584.55-16,711.13

Finding the Fourth Proportional to 30,858.28, 42,584.55 and 16,711.13

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Solution

The fourth proportional to 30,858.28, 42,584.55 and 16,711.13 is: 23,061.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,858.28 : 42,584.55 = 16,711.13 : x
  2. Step 2: Convert to fraction form
    30,858.28/42,584.55 = 16,711.13/x
  3. Step 3: Cross multiply
    30,858.28x = 42,584.55 × 16,711.13
  4. Step 4: Simplify right side
    30,858.28x = 711,635,951.04
  5. Step 5: Solve for x
    x = 711,635,951.04/30,858.28
  6. Step 6: Final answer
    x = 23,061.43

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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.