Home / 31,549.12-47,320.80-10,771.36

Finding the Fourth Proportional to 31,549.12, 47,320.80 and 10,771.36

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Solution

The fourth proportional to 31,549.12, 47,320.80 and 10,771.36 is: 16,156.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,549.12 : 47,320.80 = 10,771.36 : x
  2. Step 2: Convert to fraction form
    31,549.12/47,320.80 = 10,771.36/x
  3. Step 3: Cross multiply
    31,549.12x = 47,320.80 × 10,771.36
  4. Step 4: Simplify right side
    31,549.12x = 509,709,372.29
  5. Step 5: Solve for x
    x = 509,709,372.29/31,549.12
  6. Step 6: Final answer
    x = 16,156.06

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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.