Home / 31,603.28-47,399.45-11,882.00

Finding the Fourth Proportional to 31,603.28, 47,399.45 and 11,882.00

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Solution

The fourth proportional to 31,603.28, 47,399.45 and 11,882.00 is: 17,820.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,603.28 : 47,399.45 = 11,882.00 : x
  2. Step 2: Convert to fraction form
    31,603.28/47,399.45 = 11,882.00/x
  3. Step 3: Cross multiply
    31,603.28x = 47,399.45 × 11,882.00
  4. Step 4: Simplify right side
    31,603.28x = 563,200,323.99
  5. Step 5: Solve for x
    x = 563,200,323.99/31,603.28
  6. Step 6: Final answer
    x = 17,820.95

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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.