Home / 21,393.79-32,106.45-10,149.17

Finding the Fourth Proportional to 21,393.79, 32,106.45 and 10,149.17

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Solution

The fourth proportional to 21,393.79, 32,106.45 and 10,149.17 is: 15,231.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,393.79 : 32,106.45 = 10,149.17 : x
  2. Step 2: Convert to fraction form
    21,393.79/32,106.45 = 10,149.17/x
  3. Step 3: Cross multiply
    21,393.79x = 32,106.45 × 10,149.17
  4. Step 4: Simplify right side
    21,393.79x = 325,853,658.61
  5. Step 5: Solve for x
    x = 325,853,658.61/21,393.79
  6. Step 6: Final answer
    x = 15,231.23

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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.