Home / 43,008.97-64,510.89-13,422.64

Finding the Fourth Proportional to 43,008.97, 64,510.89 and 13,422.64

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Solution

The fourth proportional to 43,008.97, 64,510.89 and 13,422.64 is: 20,133.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,008.97 : 64,510.89 = 13,422.64 : x
  2. Step 2: Convert to fraction form
    43,008.97/64,510.89 = 13,422.64/x
  3. Step 3: Cross multiply
    43,008.97x = 64,510.89 × 13,422.64
  4. Step 4: Simplify right side
    43,008.97x = 865,906,452.55
  5. Step 5: Solve for x
    x = 865,906,452.55/43,008.97
  6. Step 6: Final answer
    x = 20,133.16

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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.