Home / 38,831.40-58,103.10-28,463.40

Finding the Fourth Proportional to 38,831.40, 58,103.10 and 28,463.40

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Solution

The fourth proportional to 38,831.40, 58,103.10 and 28,463.40 is: 42,589.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,831.40 : 58,103.10 = 28,463.40 : x
  2. Step 2: Convert to fraction form
    38,831.40/58,103.10 = 28,463.40/x
  3. Step 3: Cross multiply
    38,831.40x = 58,103.10 × 28,463.40
  4. Step 4: Simplify right side
    38,831.40x = 1,653,811,776.54
  5. Step 5: Solve for x
    x = 1,653,811,776.54/38,831.40
  6. Step 6: Final answer
    x = 42,589.55

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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.