Home / 21,489.87-32,203.65-15,262.08

Finding the Fourth Proportional to 21,489.87, 32,203.65 and 15,262.08

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Solution

The fourth proportional to 21,489.87, 32,203.65 and 15,262.08 is: 22,870.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,489.87 : 32,203.65 = 15,262.08 : x
  2. Step 2: Convert to fraction form
    21,489.87/32,203.65 = 15,262.08/x
  3. Step 3: Cross multiply
    21,489.87x = 32,203.65 × 15,262.08
  4. Step 4: Simplify right side
    21,489.87x = 491,494,682.59
  5. Step 5: Solve for x
    x = 491,494,682.59/21,489.87
  6. Step 6: Final answer
    x = 22,870.99

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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.