Home / 21,461.80-32,158.14-13,236.52

Finding the Fourth Proportional to 21,461.80, 32,158.14 and 13,236.52

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Solution

The fourth proportional to 21,461.80, 32,158.14 and 13,236.52 is: 19,833.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,461.80 : 32,158.14 = 13,236.52 : x
  2. Step 2: Convert to fraction form
    21,461.80/32,158.14 = 13,236.52/x
  3. Step 3: Cross multiply
    21,461.80x = 32,158.14 × 13,236.52
  4. Step 4: Simplify right side
    21,461.80x = 425,661,863.27
  5. Step 5: Solve for x
    x = 425,661,863.27/21,461.80
  6. Step 6: Final answer
    x = 19,833.47

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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.