Home / 28,350.55-42,535.38-12,553.43

Finding the Fourth Proportional to 28,350.55, 42,535.38 and 12,553.43

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Solution

The fourth proportional to 28,350.55, 42,535.38 and 12,553.43 is: 18,834.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,350.55 : 42,535.38 = 12,553.43 : x
  2. Step 2: Convert to fraction form
    28,350.55/42,535.38 = 12,553.43/x
  3. Step 3: Cross multiply
    28,350.55x = 42,535.38 × 12,553.43
  4. Step 4: Simplify right side
    28,350.55x = 533,964,702.68
  5. Step 5: Solve for x
    x = 533,964,702.68/28,350.55
  6. Step 6: Final answer
    x = 18,834.37

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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.