Home / 47,603.78-71,356.14-15,990.38

Finding the Fourth Proportional to 47,603.78, 71,356.14 and 15,990.38

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Solution

The fourth proportional to 47,603.78, 71,356.14 and 15,990.38 is: 23,968.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,603.78 : 71,356.14 = 15,990.38 : x
  2. Step 2: Convert to fraction form
    47,603.78/71,356.14 = 15,990.38/x
  3. Step 3: Cross multiply
    47,603.78x = 71,356.14 × 15,990.38
  4. Step 4: Simplify right side
    47,603.78x = 1,141,011,793.93
  5. Step 5: Solve for x
    x = 1,141,011,793.93/47,603.78
  6. Step 6: Final answer
    x = 23,968.93

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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.