Home / 28,888.20-43,332.30-18,865.80

Finding the Fourth Proportional to 28,888.20, 43,332.30 and 18,865.80

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Solution

The fourth proportional to 28,888.20, 43,332.30 and 18,865.80 is: 28,298.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,888.20 : 43,332.30 = 18,865.80 : x
  2. Step 2: Convert to fraction form
    28,888.20/43,332.30 = 18,865.80/x
  3. Step 3: Cross multiply
    28,888.20x = 43,332.30 × 18,865.80
  4. Step 4: Simplify right side
    28,888.20x = 817,498,505.34
  5. Step 5: Solve for x
    x = 817,498,505.34/28,888.20
  6. Step 6: Final answer
    x = 28,298.70

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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.