Home / 26,431.20-36,447.84-18,470.52

Finding the Fourth Proportional to 26,431.20, 36,447.84 and 18,470.52

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Solution

The fourth proportional to 26,431.20, 36,447.84 and 18,470.52 is: 25,470.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,431.20 : 36,447.84 = 18,470.52 : x
  2. Step 2: Convert to fraction form
    26,431.20/36,447.84 = 18,470.52/x
  3. Step 3: Cross multiply
    26,431.20x = 36,447.84 × 18,470.52
  4. Step 4: Simplify right side
    26,431.20x = 673,210,557.68
  5. Step 5: Solve for x
    x = 673,210,557.68/26,431.20
  6. Step 6: Final answer
    x = 25,470.30

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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.