Home / 31,785.32-43,864.46-17,639.08

Finding the Fourth Proportional to 31,785.32, 43,864.46 and 17,639.08

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Solution

The fourth proportional to 31,785.32, 43,864.46 and 17,639.08 is: 24,342.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,785.32 : 43,864.46 = 17,639.08 : x
  2. Step 2: Convert to fraction form
    31,785.32/43,864.46 = 17,639.08/x
  3. Step 3: Cross multiply
    31,785.32x = 43,864.46 × 17,639.08
  4. Step 4: Simplify right side
    31,785.32x = 773,728,719.10
  5. Step 5: Solve for x
    x = 773,728,719.10/31,785.32
  6. Step 6: Final answer
    x = 24,342.33

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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.