Home / 31,756.32-47,658.80-13,301.28

Finding the Fourth Proportional to 31,756.32, 47,658.80 and 13,301.28

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Solution

The fourth proportional to 31,756.32, 47,658.80 and 13,301.28 is: 19,962.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,756.32 : 47,658.80 = 13,301.28 : x
  2. Step 2: Convert to fraction form
    31,756.32/47,658.80 = 13,301.28/x
  3. Step 3: Cross multiply
    31,756.32x = 47,658.80 × 13,301.28
  4. Step 4: Simplify right side
    31,756.32x = 633,923,043.26
  5. Step 5: Solve for x
    x = 633,923,043.26/31,756.32
  6. Step 6: Final answer
    x = 19,962.11

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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.