Home / 21,681.28-32,526.78-9,031.24

Finding the Fourth Proportional to 21,681.28, 32,526.78 and 9,031.24

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Solution

The fourth proportional to 21,681.28, 32,526.78 and 9,031.24 is: 13,548.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,681.28 : 32,526.78 = 9,031.24 : x
  2. Step 2: Convert to fraction form
    21,681.28/32,526.78 = 9,031.24/x
  3. Step 3: Cross multiply
    21,681.28x = 32,526.78 × 9,031.24
  4. Step 4: Simplify right side
    21,681.28x = 293,757,156.61
  5. Step 5: Solve for x
    x = 293,757,156.61/21,681.28
  6. Step 6: Final answer
    x = 13,548.88

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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.