Home / 31,765.32-43,838.12-18,339.04

Finding the Fourth Proportional to 31,765.32, 43,838.12 and 18,339.04

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Solution

The fourth proportional to 31,765.32, 43,838.12 and 18,339.04 is: 25,309.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,765.32 : 43,838.12 = 18,339.04 : x
  2. Step 2: Convert to fraction form
    31,765.32/43,838.12 = 18,339.04/x
  3. Step 3: Cross multiply
    31,765.32x = 43,838.12 × 18,339.04
  4. Step 4: Simplify right side
    31,765.32x = 803,949,036.20
  5. Step 5: Solve for x
    x = 803,949,036.20/31,765.32
  6. Step 6: Final answer
    x = 25,309.02

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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.