Home / 21,412.61-32,134.68-10,167.99

Finding the Fourth Proportional to 21,412.61, 32,134.68 and 10,167.99

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Solution

The fourth proportional to 21,412.61, 32,134.68 and 10,167.99 is: 15,259.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,412.61 : 32,134.68 = 10,167.99 : x
  2. Step 2: Convert to fraction form
    21,412.61/32,134.68 = 10,167.99/x
  3. Step 3: Cross multiply
    21,412.61x = 32,134.68 × 10,167.99
  4. Step 4: Simplify right side
    21,412.61x = 326,745,104.89
  5. Step 5: Solve for x
    x = 326,745,104.89/21,412.61
  6. Step 6: Final answer
    x = 15,259.47

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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.