Home / 42,251.64-63,379.08-18,878.28

Finding the Fourth Proportional to 42,251.64, 63,379.08 and 18,878.28

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Solution

The fourth proportional to 42,251.64, 63,379.08 and 18,878.28 is: 28,318.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,251.64 : 63,379.08 = 18,878.28 : x
  2. Step 2: Convert to fraction form
    42,251.64/63,379.08 = 18,878.28/x
  3. Step 3: Cross multiply
    42,251.64x = 63,379.08 × 18,878.28
  4. Step 4: Simplify right side
    42,251.64x = 1,196,488,018.38
  5. Step 5: Solve for x
    x = 1,196,488,018.38/42,251.64
  6. Step 6: Final answer
    x = 28,318.14

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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.