Home / 21,633.48-32,380.97-15,689.70

Finding the Fourth Proportional to 21,633.48, 32,380.97 and 15,689.70

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Solution

The fourth proportional to 21,633.48, 32,380.97 and 15,689.70 is: 23,484.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,633.48 : 32,380.97 = 15,689.70 : x
  2. Step 2: Convert to fraction form
    21,633.48/32,380.97 = 15,689.70/x
  3. Step 3: Cross multiply
    21,633.48x = 32,380.97 × 15,689.70
  4. Step 4: Simplify right side
    21,633.48x = 508,047,626.56
  5. Step 5: Solve for x
    x = 508,047,626.56/21,633.48
  6. Step 6: Final answer
    x = 23,484.32

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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.