Home / 19,946.32-27,520.20-12,876.76

Finding the Fourth Proportional to 19,946.32, 27,520.20 and 12,876.76

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Solution

The fourth proportional to 19,946.32, 27,520.20 and 12,876.76 is: 17,766.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,946.32 : 27,520.20 = 12,876.76 : x
  2. Step 2: Convert to fraction form
    19,946.32/27,520.20 = 12,876.76/x
  3. Step 3: Cross multiply
    19,946.32x = 27,520.20 × 12,876.76
  4. Step 4: Simplify right side
    19,946.32x = 354,371,010.55
  5. Step 5: Solve for x
    x = 354,371,010.55/19,946.32
  6. Step 6: Final answer
    x = 17,766.24

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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.