Home / 21,486.90-32,199.12-15,259.08

Finding the Fourth Proportional to 21,486.90, 32,199.12 and 15,259.08

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Solution

The fourth proportional to 21,486.90, 32,199.12 and 15,259.08 is: 22,866.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,486.90 : 32,199.12 = 15,259.08 : x
  2. Step 2: Convert to fraction form
    21,486.90/32,199.12 = 15,259.08/x
  3. Step 3: Cross multiply
    21,486.90x = 32,199.12 × 15,259.08
  4. Step 4: Simplify right side
    21,486.90x = 491,328,948.01
  5. Step 5: Solve for x
    x = 491,328,948.01/21,486.90
  6. Step 6: Final answer
    x = 22,866.44

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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.