Home / 38,015.20-57,022.80-18,332.20

Finding the Fourth Proportional to 38,015.20, 57,022.80 and 18,332.20

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Solution

The fourth proportional to 38,015.20, 57,022.80 and 18,332.20 is: 27,498.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,015.20 : 57,022.80 = 18,332.20 : x
  2. Step 2: Convert to fraction form
    38,015.20/57,022.80 = 18,332.20/x
  3. Step 3: Cross multiply
    38,015.20x = 57,022.80 × 18,332.20
  4. Step 4: Simplify right side
    38,015.20x = 1,045,353,374.16
  5. Step 5: Solve for x
    x = 1,045,353,374.16/38,015.20
  6. Step 6: Final answer
    x = 27,498.30

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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.