Home / 31,477.20-47,204.92-13,959.28

Finding the Fourth Proportional to 31,477.20, 47,204.92 and 13,959.28

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Solution

The fourth proportional to 31,477.20, 47,204.92 and 13,959.28 is: 20,934.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,477.20 : 47,204.92 = 13,959.28 : x
  2. Step 2: Convert to fraction form
    31,477.20/47,204.92 = 13,959.28/x
  3. Step 3: Cross multiply
    31,477.20x = 47,204.92 × 13,959.28
  4. Step 4: Simplify right side
    31,477.20x = 658,946,695.66
  5. Step 5: Solve for x
    x = 658,946,695.66/31,477.20
  6. Step 6: Final answer
    x = 20,934.10

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1.5x scale

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.