Home / 23,331.75-32,186.72-15,780.72

Finding the Fourth Proportional to 23,331.75, 32,186.72 and 15,780.72

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Solution

The fourth proportional to 23,331.75, 32,186.72 and 15,780.72 is: 21,769.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,331.75 : 32,186.72 = 15,780.72 : x
  2. Step 2: Convert to fraction form
    23,331.75/32,186.72 = 15,780.72/x
  3. Step 3: Cross multiply
    23,331.75x = 32,186.72 × 15,780.72
  4. Step 4: Simplify right side
    23,331.75x = 507,929,537.13
  5. Step 5: Solve for x
    x = 507,929,537.13/23,331.75
  6. Step 6: Final answer
    x = 21,769.89

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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.