Home / 20,085.34-27,717.70-11,132.74

Finding the Fourth Proportional to 20,085.34, 27,717.70 and 11,132.74

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Solution

The fourth proportional to 20,085.34, 27,717.70 and 11,132.74 is: 15,363.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,085.34 : 27,717.70 = 11,132.74 : x
  2. Step 2: Convert to fraction form
    20,085.34/27,717.70 = 11,132.74/x
  3. Step 3: Cross multiply
    20,085.34x = 27,717.70 × 11,132.74
  4. Step 4: Simplify right side
    20,085.34x = 308,573,947.50
  5. Step 5: Solve for x
    x = 308,573,947.50/20,085.34
  6. Step 6: Final answer
    x = 15,363.14

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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.