Home / 21,646.99-32,445.90-9,159.22

Finding the Fourth Proportional to 21,646.99, 32,445.90 and 9,159.22

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Solution

The fourth proportional to 21,646.99, 32,445.90 and 9,159.22 is: 13,728.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,646.99 : 32,445.90 = 9,159.22 : x
  2. Step 2: Convert to fraction form
    21,646.99/32,445.90 = 9,159.22/x
  3. Step 3: Cross multiply
    21,646.99x = 32,445.90 × 9,159.22
  4. Step 4: Simplify right side
    21,646.99x = 297,179,136.20
  5. Step 5: Solve for x
    x = 297,179,136.20/21,646.99
  6. Step 6: Final answer
    x = 13,728.43

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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.