Home / 28,259.25-42,385.96-14,213.55

Finding the Fourth Proportional to 28,259.25, 42,385.96 and 14,213.55

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Solution

The fourth proportional to 28,259.25, 42,385.96 and 14,213.55 is: 21,318.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,259.25 : 42,385.96 = 14,213.55 : x
  2. Step 2: Convert to fraction form
    28,259.25/42,385.96 = 14,213.55/x
  3. Step 3: Cross multiply
    28,259.25x = 42,385.96 × 14,213.55
  4. Step 4: Simplify right side
    28,259.25x = 602,454,979.29
  5. Step 5: Solve for x
    x = 602,454,979.29/28,259.25
  6. Step 6: Final answer
    x = 21,318.86

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1.5x scale

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.