Home / 31,132.20-43,643.40-31,132.20

Finding the Fourth Proportional to 31,132.20, 43,643.40 and 31,132.20

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Solution

The fourth proportional to 31,132.20, 43,643.40 and 31,132.20 is: 43,643.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,132.20 : 43,643.40 = 31,132.20 : x
  2. Step 2: Convert to fraction form
    31,132.20/43,643.40 = 31,132.20/x
  3. Step 3: Cross multiply
    31,132.20x = 43,643.40 × 31,132.20
  4. Step 4: Simplify right side
    31,132.20x = 1,358,715,057.48
  5. Step 5: Solve for x
    x = 1,358,715,057.48/31,132.20
  6. Step 6: Final answer
    x = 43,643.40

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Half scale
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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.