Home / 23,378.13-32,260.64-12,765.78

Finding the Fourth Proportional to 23,378.13, 32,260.64 and 12,765.78

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Solution

The fourth proportional to 23,378.13, 32,260.64 and 12,765.78 is: 17,616.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,378.13 : 32,260.64 = 12,765.78 : x
  2. Step 2: Convert to fraction form
    23,378.13/32,260.64 = 12,765.78/x
  3. Step 3: Cross multiply
    23,378.13x = 32,260.64 × 12,765.78
  4. Step 4: Simplify right side
    23,378.13x = 411,832,169.07
  5. Step 5: Solve for x
    x = 411,832,169.07/23,378.13
  6. Step 6: Final answer
    x = 17,616.13

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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.