Home / 42,060.40-63,004.20-21,295.60

Finding the Fourth Proportional to 42,060.40, 63,004.20 and 21,295.60

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Solution

The fourth proportional to 42,060.40, 63,004.20 and 21,295.60 is: 31,899.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,060.40 : 63,004.20 = 21,295.60 : x
  2. Step 2: Convert to fraction form
    42,060.40/63,004.20 = 21,295.60/x
  3. Step 3: Cross multiply
    42,060.40x = 63,004.20 × 21,295.60
  4. Step 4: Simplify right side
    42,060.40x = 1,341,712,241.52
  5. Step 5: Solve for x
    x = 1,341,712,241.52/42,060.40
  6. Step 6: Final answer
    x = 31,899.65

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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.