Home / 25,256.80-34,818-17,679.76

Finding the Fourth Proportional to 25,256.80, 34,818 and 17,679.76

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Solution

The fourth proportional to 25,256.80, 34,818 and 17,679.76 is: 24,372.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,256.80 : 34,818 = 17,679.76 : x
  2. Step 2: Convert to fraction form
    25,256.80/34,818 = 17,679.76/x
  3. Step 3: Cross multiply
    25,256.80x = 34,818 × 17,679.76
  4. Step 4: Simplify right side
    25,256.80x = 615,573,883.68
  5. Step 5: Solve for x
    x = 615,573,883.68/25,256.80
  6. Step 6: Final answer
    x = 24,372.60

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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.