Home / 23,430.38-32,333.87-12,820.01

Finding the Fourth Proportional to 23,430.38, 32,333.87 and 12,820.01

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Solution

The fourth proportional to 23,430.38, 32,333.87 and 12,820.01 is: 17,691.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,430.38 : 32,333.87 = 12,820.01 : x
  2. Step 2: Convert to fraction form
    23,430.38/32,333.87 = 12,820.01/x
  3. Step 3: Cross multiply
    23,430.38x = 32,333.87 × 12,820.01
  4. Step 4: Simplify right side
    23,430.38x = 414,520,310.97
  5. Step 5: Solve for x
    x = 414,520,310.97/23,430.38
  6. Step 6: Final answer
    x = 17,691.58

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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.