Home / 21,445.33-32,173.76-8,961.20

Finding the Fourth Proportional to 21,445.33, 32,173.76 and 8,961.20

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Solution

The fourth proportional to 21,445.33, 32,173.76 and 8,961.20 is: 13,444.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,445.33 : 32,173.76 = 8,961.20 : x
  2. Step 2: Convert to fraction form
    21,445.33/32,173.76 = 8,961.20/x
  3. Step 3: Cross multiply
    21,445.33x = 32,173.76 × 8,961.20
  4. Step 4: Simplify right side
    21,445.33x = 288,315,498.11
  5. Step 5: Solve for x
    x = 288,315,498.11/21,445.33
  6. Step 6: Final answer
    x = 13,444.21

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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.