Home / 23,506.85-32,432.99-15,128.21

Finding the Fourth Proportional to 23,506.85, 32,432.99 and 15,128.21

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Solution

The fourth proportional to 23,506.85, 32,432.99 and 15,128.21 is: 20,872.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,506.85 : 32,432.99 = 15,128.21 : x
  2. Step 2: Convert to fraction form
    23,506.85/32,432.99 = 15,128.21/x
  3. Step 3: Cross multiply
    23,506.85x = 32,432.99 × 15,128.21
  4. Step 4: Simplify right side
    23,506.85x = 490,653,008.01
  5. Step 5: Solve for x
    x = 490,653,008.01/23,506.85
  6. Step 6: Final answer
    x = 20,872.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.