Home / 42,535.98-63,818.28-18,840.24

Finding the Fourth Proportional to 42,535.98, 63,818.28 and 18,840.24

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Solution

The fourth proportional to 42,535.98, 63,818.28 and 18,840.24 is: 28,266.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,535.98 : 63,818.28 = 18,840.24 : x
  2. Step 2: Convert to fraction form
    42,535.98/63,818.28 = 18,840.24/x
  3. Step 3: Cross multiply
    42,535.98x = 63,818.28 × 18,840.24
  4. Step 4: Simplify right side
    42,535.98x = 1,202,351,711.59
  5. Step 5: Solve for x
    x = 1,202,351,711.59/42,535.98
  6. Step 6: Final answer
    x = 28,266.70

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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.