Home / 31,785.56-43,866.06-18,359.28

Finding the Fourth Proportional to 31,785.56, 43,866.06 and 18,359.28

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Solution

The fourth proportional to 31,785.56, 43,866.06 and 18,359.28 is: 25,336.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,785.56 : 43,866.06 = 18,359.28 : x
  2. Step 2: Convert to fraction form
    31,785.56/43,866.06 = 18,359.28/x
  3. Step 3: Cross multiply
    31,785.56x = 43,866.06 × 18,359.28
  4. Step 4: Simplify right side
    31,785.56x = 805,349,278.04
  5. Step 5: Solve for x
    x = 805,349,278.04/31,785.56
  6. Step 6: Final answer
    x = 25,336.95

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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.