Home / 21,445.92-32,165.28-5,860.80

Finding the Fourth Proportional to 21,445.92, 32,165.28 and 5,860.80

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Solution

The fourth proportional to 21,445.92, 32,165.28 and 5,860.80 is: 8,790.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,445.92 : 32,165.28 = 5,860.80 : x
  2. Step 2: Convert to fraction form
    21,445.92/32,165.28 = 5,860.80/x
  3. Step 3: Cross multiply
    21,445.92x = 32,165.28 × 5,860.80
  4. Step 4: Simplify right side
    21,445.92x = 188,514,273.02
  5. Step 5: Solve for x
    x = 188,514,273.02/21,445.92
  6. Step 6: Final answer
    x = 8,790.22

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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.