Home / 42,001.10-63,007.05-20,951.90

Finding the Fourth Proportional to 42,001.10, 63,007.05 and 20,951.90

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Solution

The fourth proportional to 42,001.10, 63,007.05 and 20,951.90 is: 31,430.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,001.10 : 63,007.05 = 20,951.90 : x
  2. Step 2: Convert to fraction form
    42,001.10/63,007.05 = 20,951.90/x
  3. Step 3: Cross multiply
    42,001.10x = 63,007.05 × 20,951.90
  4. Step 4: Simplify right side
    42,001.10x = 1,320,117,410.90
  5. Step 5: Solve for x
    x = 1,320,117,410.90/42,001.10
  6. Step 6: Final answer
    x = 31,430.54

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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.