Home / 31,831.35-47,726.13-17,792.86

Finding the Fourth Proportional to 31,831.35, 47,726.13 and 17,792.86

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Solution

The fourth proportional to 31,831.35, 47,726.13 and 17,792.86 is: 26,677.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,831.35 : 47,726.13 = 17,792.86 : x
  2. Step 2: Convert to fraction form
    31,831.35/47,726.13 = 17,792.86/x
  3. Step 3: Cross multiply
    31,831.35x = 47,726.13 × 17,792.86
  4. Step 4: Simplify right side
    31,831.35x = 849,184,110.80
  5. Step 5: Solve for x
    x = 849,184,110.80/31,831.35
  6. Step 6: Final answer
    x = 26,677.61

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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.