Home / 47,712.70-71,598.30-19,646.20

Finding the Fourth Proportional to 47,712.70, 71,598.30 and 19,646.20

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Solution

The fourth proportional to 47,712.70, 71,598.30 and 19,646.20 is: 29,481.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,712.70 : 71,598.30 = 19,646.20 : x
  2. Step 2: Convert to fraction form
    47,712.70/71,598.30 = 19,646.20/x
  3. Step 3: Cross multiply
    47,712.70x = 71,598.30 × 19,646.20
  4. Step 4: Simplify right side
    47,712.70x = 1,406,634,521.46
  5. Step 5: Solve for x
    x = 1,406,634,521.46/47,712.70
  6. Step 6: Final answer
    x = 29,481.34

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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.