Home / 20,827.92-28,712.63-14,849.21

Finding the Fourth Proportional to 20,827.92, 28,712.63 and 14,849.21

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Solution

The fourth proportional to 20,827.92, 28,712.63 and 14,849.21 is: 20,470.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,827.92 : 28,712.63 = 14,849.21 : x
  2. Step 2: Convert to fraction form
    20,827.92/28,712.63 = 14,849.21/x
  3. Step 3: Cross multiply
    20,827.92x = 28,712.63 × 14,849.21
  4. Step 4: Simplify right side
    20,827.92x = 426,359,981.43
  5. Step 5: Solve for x
    x = 426,359,981.43/20,827.92
  6. Step 6: Final answer
    x = 20,470.59

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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.