Home / 28,869.80-43,319.10-16,399.40

Finding the Fourth Proportional to 28,869.80, 43,319.10 and 16,399.40

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Solution

The fourth proportional to 28,869.80, 43,319.10 and 16,399.40 is: 24,607.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,869.80 : 43,319.10 = 16,399.40 : x
  2. Step 2: Convert to fraction form
    28,869.80/43,319.10 = 16,399.40/x
  3. Step 3: Cross multiply
    28,869.80x = 43,319.10 × 16,399.40
  4. Step 4: Simplify right side
    28,869.80x = 710,407,248.54
  5. Step 5: Solve for x
    x = 710,407,248.54/28,869.80
  6. Step 6: Final answer
    x = 24,607.28

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.