Home / 38,620.80-57,931.20-37,964.70

Finding the Fourth Proportional to 38,620.80, 57,931.20 and 37,964.70

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Solution

The fourth proportional to 38,620.80, 57,931.20 and 37,964.70 is: 56,947.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,620.80 : 57,931.20 = 37,964.70 : x
  2. Step 2: Convert to fraction form
    38,620.80/57,931.20 = 37,964.70/x
  3. Step 3: Cross multiply
    38,620.80x = 57,931.20 × 37,964.70
  4. Step 4: Simplify right side
    38,620.80x = 2,199,340,628.64
  5. Step 5: Solve for x
    x = 2,199,340,628.64/38,620.80
  6. Step 6: Final answer
    x = 56,947.05

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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.