Home / 47,118.31-70,666.49-13,829.42

Finding the Fourth Proportional to 47,118.31, 70,666.49 and 13,829.42

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Solution

The fourth proportional to 47,118.31, 70,666.49 and 13,829.42 is: 20,740.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,118.31 : 70,666.49 = 13,829.42 : x
  2. Step 2: Convert to fraction form
    47,118.31/70,666.49 = 13,829.42/x
  3. Step 3: Cross multiply
    47,118.31x = 70,666.49 × 13,829.42
  4. Step 4: Simplify right side
    47,118.31x = 977,276,781.38
  5. Step 5: Solve for x
    x = 977,276,781.38/47,118.31
  6. Step 6: Final answer
    x = 20,740.91

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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.