Home / 37,488.40-56,216.40-18,761.20

Finding the Fourth Proportional to 37,488.40, 56,216.40 and 18,761.20

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Solution

The fourth proportional to 37,488.40, 56,216.40 and 18,761.20 is: 28,133.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,488.40 : 56,216.40 = 18,761.20 : x
  2. Step 2: Convert to fraction form
    37,488.40/56,216.40 = 18,761.20/x
  3. Step 3: Cross multiply
    37,488.40x = 56,216.40 × 18,761.20
  4. Step 4: Simplify right side
    37,488.40x = 1,054,687,123.68
  5. Step 5: Solve for x
    x = 1,054,687,123.68/37,488.40
  6. Step 6: Final answer
    x = 28,133.69

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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.