Home / 31,785.40-43,867.74-17,642.80

Finding the Fourth Proportional to 31,785.40, 43,867.74 and 17,642.80

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Solution

The fourth proportional to 31,785.40, 43,867.74 and 17,642.80 is: 24,349.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,785.40 : 43,867.74 = 17,642.80 : x
  2. Step 2: Convert to fraction form
    31,785.40/43,867.74 = 17,642.80/x
  3. Step 3: Cross multiply
    31,785.40x = 43,867.74 × 17,642.80
  4. Step 4: Simplify right side
    31,785.40x = 773,949,763.27
  5. Step 5: Solve for x
    x = 773,949,763.27/31,785.40
  6. Step 6: Final answer
    x = 24,349.22

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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.