Home / 42,201.90-63,289.88-20,008.72

Finding the Fourth Proportional to 42,201.90, 63,289.88 and 20,008.72

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Solution

The fourth proportional to 42,201.90, 63,289.88 and 20,008.72 is: 30,006.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,201.90 : 63,289.88 = 20,008.72 : x
  2. Step 2: Convert to fraction form
    42,201.90/63,289.88 = 20,008.72/x
  3. Step 3: Cross multiply
    42,201.90x = 63,289.88 × 20,008.72
  4. Step 4: Simplify right side
    42,201.90x = 1,266,349,487.75
  5. Step 5: Solve for x
    x = 1,266,349,487.75/42,201.90
  6. Step 6: Final answer
    x = 30,006.93

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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.