Home / 21,640.47-32,404.08-17,401.20

Finding the Fourth Proportional to 21,640.47, 32,404.08 and 17,401.20

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Solution

The fourth proportional to 21,640.47, 32,404.08 and 17,401.20 is: 26,056.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,640.47 : 32,404.08 = 17,401.20 : x
  2. Step 2: Convert to fraction form
    21,640.47/32,404.08 = 17,401.20/x
  3. Step 3: Cross multiply
    21,640.47x = 32,404.08 × 17,401.20
  4. Step 4: Simplify right side
    21,640.47x = 563,869,876.90
  5. Step 5: Solve for x
    x = 563,869,876.90/21,640.47
  6. Step 6: Final answer
    x = 26,056.27

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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.