Home / 42,019.38-63,028.89-10,854.54

Finding the Fourth Proportional to 42,019.38, 63,028.89 and 10,854.54

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Solution

The fourth proportional to 42,019.38, 63,028.89 and 10,854.54 is: 16,281.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,019.38 : 63,028.89 = 10,854.54 : x
  2. Step 2: Convert to fraction form
    42,019.38/63,028.89 = 10,854.54/x
  3. Step 3: Cross multiply
    42,019.38x = 63,028.89 × 10,854.54
  4. Step 4: Simplify right side
    42,019.38x = 684,149,607.66
  5. Step 5: Solve for x
    x = 684,149,607.66/42,019.38
  6. Step 6: Final answer
    x = 16,281.76

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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.