Home / 38,919.74-58,386.90-12,621.06

Finding the Fourth Proportional to 38,919.74, 58,386.90 and 12,621.06

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Solution

The fourth proportional to 38,919.74, 58,386.90 and 12,621.06 is: 18,933.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,919.74 : 58,386.90 = 12,621.06 : x
  2. Step 2: Convert to fraction form
    38,919.74/58,386.90 = 12,621.06/x
  3. Step 3: Cross multiply
    38,919.74x = 58,386.90 × 12,621.06
  4. Step 4: Simplify right side
    38,919.74x = 736,904,568.11
  5. Step 5: Solve for x
    x = 736,904,568.11/38,919.74
  6. Step 6: Final answer
    x = 18,933.96

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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.