Home / 21,560.78-32,341.17-5,978.41

Finding the Fourth Proportional to 21,560.78, 32,341.17 and 5,978.41

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Solution

The fourth proportional to 21,560.78, 32,341.17 and 5,978.41 is: 8,967.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,560.78 : 32,341.17 = 5,978.41 : x
  2. Step 2: Convert to fraction form
    21,560.78/32,341.17 = 5,978.41/x
  3. Step 3: Cross multiply
    21,560.78x = 32,341.17 × 5,978.41
  4. Step 4: Simplify right side
    21,560.78x = 193,348,774.14
  5. Step 5: Solve for x
    x = 193,348,774.14/21,560.78
  6. Step 6: Final answer
    x = 8,967.62

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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.