Home / 42,504.20-63,659.10-21,703.40

Finding the Fourth Proportional to 42,504.20, 63,659.10 and 21,703.40

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Solution

The fourth proportional to 42,504.20, 63,659.10 and 21,703.40 is: 32,505.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,504.20 : 63,659.10 = 21,703.40 : x
  2. Step 2: Convert to fraction form
    42,504.20/63,659.10 = 21,703.40/x
  3. Step 3: Cross multiply
    42,504.20x = 63,659.10 × 21,703.40
  4. Step 4: Simplify right side
    42,504.20x = 1,381,618,910.94
  5. Step 5: Solve for x
    x = 1,381,618,910.94/42,504.20
  6. Step 6: Final answer
    x = 32,505.47

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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.