Home / 28,886.91-43,332.80-9,161.39

Finding the Fourth Proportional to 28,886.91, 43,332.80 and 9,161.39

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Solution

The fourth proportional to 28,886.91, 43,332.80 and 9,161.39 is: 13,742.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,886.91 : 43,332.80 = 9,161.39 : x
  2. Step 2: Convert to fraction form
    28,886.91/43,332.80 = 9,161.39/x
  3. Step 3: Cross multiply
    28,886.91x = 43,332.80 × 9,161.39
  4. Step 4: Simplify right side
    28,886.91x = 396,988,418.12
  5. Step 5: Solve for x
    x = 396,988,418.12/28,886.91
  6. Step 6: Final answer
    x = 13,742.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.