Home / 25,417.64-38,131.56-8,778.29

Finding the Fourth Proportional to 25,417.64, 38,131.56 and 8,778.29

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Solution

The fourth proportional to 25,417.64, 38,131.56 and 8,778.29 is: 13,169.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,417.64 : 38,131.56 = 8,778.29 : x
  2. Step 2: Convert to fraction form
    25,417.64/38,131.56 = 8,778.29/x
  3. Step 3: Cross multiply
    25,417.64x = 38,131.56 × 8,778.29
  4. Step 4: Simplify right side
    25,417.64x = 334,729,701.17
  5. Step 5: Solve for x
    x = 334,729,701.17/25,417.64
  6. Step 6: Final answer
    x = 13,169.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.