Home / 31,339.20-47,008.80-29,152.20

Finding the Fourth Proportional to 31,339.20, 47,008.80 and 29,152.20

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Solution

The fourth proportional to 31,339.20, 47,008.80 and 29,152.20 is: 43,728.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,339.20 : 47,008.80 = 29,152.20 : x
  2. Step 2: Convert to fraction form
    31,339.20/47,008.80 = 29,152.20/x
  3. Step 3: Cross multiply
    31,339.20x = 47,008.80 × 29,152.20
  4. Step 4: Simplify right side
    31,339.20x = 1,370,409,939.36
  5. Step 5: Solve for x
    x = 1,370,409,939.36/31,339.20
  6. Step 6: Final answer
    x = 43,728.30

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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.