Home / 31,469.02-47,203.28-12,748.76

Finding the Fourth Proportional to 31,469.02, 47,203.28 and 12,748.76

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Solution

The fourth proportional to 31,469.02, 47,203.28 and 12,748.76 is: 19,123.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,469.02 : 47,203.28 = 12,748.76 : x
  2. Step 2: Convert to fraction form
    31,469.02/47,203.28 = 12,748.76/x
  3. Step 3: Cross multiply
    31,469.02x = 47,203.28 × 12,748.76
  4. Step 4: Simplify right side
    31,469.02x = 601,783,287.93
  5. Step 5: Solve for x
    x = 601,783,287.93/31,469.02
  6. Step 6: Final answer
    x = 19,123.04

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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.