Home / 42,011.03-63,027.17-12,428.75

Finding the Fourth Proportional to 42,011.03, 63,027.17 and 12,428.75

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Solution

The fourth proportional to 42,011.03, 63,027.17 and 12,428.75 is: 18,646.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,011.03 : 63,027.17 = 12,428.75 : x
  2. Step 2: Convert to fraction form
    42,011.03/63,027.17 = 12,428.75/x
  3. Step 3: Cross multiply
    42,011.03x = 63,027.17 × 12,428.75
  4. Step 4: Simplify right side
    42,011.03x = 783,348,939.14
  5. Step 5: Solve for x
    x = 783,348,939.14/42,011.03
  6. Step 6: Final answer
    x = 18,646.27

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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.