Home / 28,376.97-39,158.33-16,438.17

Finding the Fourth Proportional to 28,376.97, 39,158.33 and 16,438.17

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Solution

The fourth proportional to 28,376.97, 39,158.33 and 16,438.17 is: 22,683.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,376.97 : 39,158.33 = 16,438.17 : x
  2. Step 2: Convert to fraction form
    28,376.97/39,158.33 = 16,438.17/x
  3. Step 3: Cross multiply
    28,376.97x = 39,158.33 × 16,438.17
  4. Step 4: Simplify right side
    28,376.97x = 643,691,285.46
  5. Step 5: Solve for x
    x = 643,691,285.46/28,376.97
  6. Step 6: Final answer
    x = 22,683.58

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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.