Home / 15,999.90-23,999.85-13,667.10

Finding the Fourth Proportional to 15,999.90, 23,999.85 and 13,667.10

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Solution

The fourth proportional to 15,999.90, 23,999.85 and 13,667.10 is: 20,500.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,999.90 : 23,999.85 = 13,667.10 : x
  2. Step 2: Convert to fraction form
    15,999.90/23,999.85 = 13,667.10/x
  3. Step 3: Cross multiply
    15,999.90x = 23,999.85 × 13,667.10
  4. Step 4: Simplify right side
    15,999.90x = 328,008,349.94
  5. Step 5: Solve for x
    x = 328,008,349.94/15,999.90
  6. Step 6: Final answer
    x = 20,500.65

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Similar ratio
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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.