Home / 42,196.20-63,308.70-18,829.80

Finding the Fourth Proportional to 42,196.20, 63,308.70 and 18,829.80

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Solution

The fourth proportional to 42,196.20, 63,308.70 and 18,829.80 is: 28,251.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,196.20 : 63,308.70 = 18,829.80 : x
  2. Step 2: Convert to fraction form
    42,196.20/63,308.70 = 18,829.80/x
  3. Step 3: Cross multiply
    42,196.20x = 63,308.70 × 18,829.80
  4. Step 4: Simplify right side
    42,196.20x = 1,192,090,159.26
  5. Step 5: Solve for x
    x = 1,192,090,159.26/42,196.20
  6. Step 6: Final answer
    x = 28,251.13

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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.