Home / 31,008.13-46,512.19-9,120.13

Finding the Fourth Proportional to 31,008.13, 46,512.19 and 9,120.13

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Solution

The fourth proportional to 31,008.13, 46,512.19 and 9,120.13 is: 13,680.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,008.13 : 46,512.19 = 9,120.13 : x
  2. Step 2: Convert to fraction form
    31,008.13/46,512.19 = 9,120.13/x
  3. Step 3: Cross multiply
    31,008.13x = 46,512.19 × 9,120.13
  4. Step 4: Simplify right side
    31,008.13x = 424,197,219.38
  5. Step 5: Solve for x
    x = 424,197,219.38/31,008.13
  6. Step 6: Final answer
    x = 13,680.19

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Similar ratio
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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.