Home / 58,269.23-87,391.19-20,831.90

Finding the Fourth Proportional to 58,269.23, 87,391.19 and 20,831.90

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Solution

The fourth proportional to 58,269.23, 87,391.19 and 20,831.90 is: 31,243.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,269.23 : 87,391.19 = 20,831.90 : x
  2. Step 2: Convert to fraction form
    58,269.23/87,391.19 = 20,831.90/x
  3. Step 3: Cross multiply
    58,269.23x = 87,391.19 × 20,831.90
  4. Step 4: Simplify right side
    58,269.23x = 1,820,523,989.85
  5. Step 5: Solve for x
    x = 1,820,523,989.85/58,269.23
  6. Step 6: Final answer
    x = 31,243.32

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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.