Home / 21,690.70-32,519.55-15,009.44

Finding the Fourth Proportional to 21,690.70, 32,519.55 and 15,009.44

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Solution

The fourth proportional to 21,690.70, 32,519.55 and 15,009.44 is: 22,502.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,690.70 : 32,519.55 = 15,009.44 : x
  2. Step 2: Convert to fraction form
    21,690.70/32,519.55 = 15,009.44/x
  3. Step 3: Cross multiply
    21,690.70x = 32,519.55 × 15,009.44
  4. Step 4: Simplify right side
    21,690.70x = 488,099,996.91
  5. Step 5: Solve for x
    x = 488,099,996.91/21,690.70
  6. Step 6: Final answer
    x = 22,502.74

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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.