Home / 25,785.64-35,587.42-15,717.23

Finding the Fourth Proportional to 25,785.64, 35,587.42 and 15,717.23

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Solution

The fourth proportional to 25,785.64, 35,587.42 and 15,717.23 is: 21,691.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,785.64 : 35,587.42 = 15,717.23 : x
  2. Step 2: Convert to fraction form
    25,785.64/35,587.42 = 15,717.23/x
  3. Step 3: Cross multiply
    25,785.64x = 35,587.42 × 15,717.23
  4. Step 4: Simplify right side
    25,785.64x = 559,335,714.92
  5. Step 5: Solve for x
    x = 559,335,714.92/25,785.64
  6. Step 6: Final answer
    x = 21,691.75

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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.