Home / 31,640.91-47,461.76-9,449.20

Finding the Fourth Proportional to 31,640.91, 47,461.76 and 9,449.20

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Solution

The fourth proportional to 31,640.91, 47,461.76 and 9,449.20 is: 14,173.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,640.91 : 47,461.76 = 9,449.20 : x
  2. Step 2: Convert to fraction form
    31,640.91/47,461.76 = 9,449.20/x
  3. Step 3: Cross multiply
    31,640.91x = 47,461.76 × 9,449.20
  4. Step 4: Simplify right side
    31,640.91x = 448,475,662.59
  5. Step 5: Solve for x
    x = 448,475,662.59/31,640.91
  6. Step 6: Final answer
    x = 14,173.92

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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.