Home / 25,081.28-34,612.56-13,751.81

Finding the Fourth Proportional to 25,081.28, 34,612.56 and 13,751.81

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Solution

The fourth proportional to 25,081.28, 34,612.56 and 13,751.81 is: 18,977.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,081.28 : 34,612.56 = 13,751.81 : x
  2. Step 2: Convert to fraction form
    25,081.28/34,612.56 = 13,751.81/x
  3. Step 3: Cross multiply
    25,081.28x = 34,612.56 × 13,751.81
  4. Step 4: Simplify right side
    25,081.28x = 475,985,435.27
  5. Step 5: Solve for x
    x = 475,985,435.27/25,081.28
  6. Step 6: Final answer
    x = 18,977.72

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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.