Home / 20,831.60-28,717.70-14,852.88

Finding the Fourth Proportional to 20,831.60, 28,717.70 and 14,852.88

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Solution

The fourth proportional to 20,831.60, 28,717.70 and 14,852.88 is: 20,475.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,831.60 : 28,717.70 = 14,852.88 : x
  2. Step 2: Convert to fraction form
    20,831.60/28,717.70 = 14,852.88/x
  3. Step 3: Cross multiply
    20,831.60x = 28,717.70 × 14,852.88
  4. Step 4: Simplify right side
    20,831.60x = 426,540,551.98
  5. Step 5: Solve for x
    x = 426,540,551.98/20,831.60
  6. Step 6: Final answer
    x = 20,475.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.