Home / 20,010.57-27,612.77-11,510.43

Finding the Fourth Proportional to 20,010.57, 27,612.77 and 11,510.43

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Solution

The fourth proportional to 20,010.57, 27,612.77 and 11,510.43 is: 15,883.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,010.57 : 27,612.77 = 11,510.43 : x
  2. Step 2: Convert to fraction form
    20,010.57/27,612.77 = 11,510.43/x
  3. Step 3: Cross multiply
    20,010.57x = 27,612.77 × 11,510.43
  4. Step 4: Simplify right side
    20,010.57x = 317,834,856.19
  5. Step 5: Solve for x
    x = 317,834,856.19/20,010.57
  6. Step 6: Final answer
    x = 15,883.35

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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.