Home / 23,389.61-32,278.13-12,779.92

Finding the Fourth Proportional to 23,389.61, 32,278.13 and 12,779.92

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Solution

The fourth proportional to 23,389.61, 32,278.13 and 12,779.92 is: 17,636.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,389.61 : 32,278.13 = 12,779.92 : x
  2. Step 2: Convert to fraction form
    23,389.61/32,278.13 = 12,779.92/x
  3. Step 3: Cross multiply
    23,389.61x = 32,278.13 × 12,779.92
  4. Step 4: Simplify right side
    23,389.61x = 412,511,919.15
  5. Step 5: Solve for x
    x = 412,511,919.15/23,389.61
  6. Step 6: Final answer
    x = 17,636.55

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Double scale
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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.