Home / 21,372.18-32,070.42-11,511.24

Finding the Fourth Proportional to 21,372.18, 32,070.42 and 11,511.24

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Solution

The fourth proportional to 21,372.18, 32,070.42 and 11,511.24 is: 17,273.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,372.18 : 32,070.42 = 11,511.24 : x
  2. Step 2: Convert to fraction form
    21,372.18/32,070.42 = 11,511.24/x
  3. Step 3: Cross multiply
    21,372.18x = 32,070.42 × 11,511.24
  4. Step 4: Simplify right side
    21,372.18x = 369,170,301.52
  5. Step 5: Solve for x
    x = 369,170,301.52/21,372.18
  6. Step 6: Final answer
    x = 17,273.40

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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.