Home / 31,716.90-47,577.36-10,655.28

Finding the Fourth Proportional to 31,716.90, 47,577.36 and 10,655.28

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Solution

The fourth proportional to 31,716.90, 47,577.36 and 10,655.28 is: 15,983.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,716.90 : 47,577.36 = 10,655.28 : x
  2. Step 2: Convert to fraction form
    31,716.90/47,577.36 = 10,655.28/x
  3. Step 3: Cross multiply
    31,716.90x = 47,577.36 × 10,655.28
  4. Step 4: Simplify right side
    31,716.90x = 506,950,092.46
  5. Step 5: Solve for x
    x = 506,950,092.46/31,716.90
  6. Step 6: Final answer
    x = 15,983.60

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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.