Home / 28,226.44-42,332.28-13,405.87

Finding the Fourth Proportional to 28,226.44, 42,332.28 and 13,405.87

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Solution

The fourth proportional to 28,226.44, 42,332.28 and 13,405.87 is: 20,105.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,226.44 : 42,332.28 = 13,405.87 : x
  2. Step 2: Convert to fraction form
    28,226.44/42,332.28 = 13,405.87/x
  3. Step 3: Cross multiply
    28,226.44x = 42,332.28 × 13,405.87
  4. Step 4: Simplify right side
    28,226.44x = 567,501,042.48
  5. Step 5: Solve for x
    x = 567,501,042.48/28,226.44
  6. Step 6: Final answer
    x = 20,105.30

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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.