Home / 21,681.17-32,528.30-10,291.83

Finding the Fourth Proportional to 21,681.17, 32,528.30 and 10,291.83

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Solution

The fourth proportional to 21,681.17, 32,528.30 and 10,291.83 is: 15,440.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,681.17 : 32,528.30 = 10,291.83 : x
  2. Step 2: Convert to fraction form
    21,681.17/32,528.30 = 10,291.83/x
  3. Step 3: Cross multiply
    21,681.17x = 32,528.30 × 10,291.83
  4. Step 4: Simplify right side
    21,681.17x = 334,775,733.79
  5. Step 5: Solve for x
    x = 334,775,733.79/21,681.17
  6. Step 6: Final answer
    x = 15,440.85

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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.