Home / 27,406.76-37,818.70-21,755.18

Finding the Fourth Proportional to 27,406.76, 37,818.70 and 21,755.18

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Solution

The fourth proportional to 27,406.76, 37,818.70 and 21,755.18 is: 30,020.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,406.76 : 37,818.70 = 21,755.18 : x
  2. Step 2: Convert to fraction form
    27,406.76/37,818.70 = 21,755.18/x
  3. Step 3: Cross multiply
    27,406.76x = 37,818.70 × 21,755.18
  4. Step 4: Simplify right side
    27,406.76x = 822,752,666.02
  5. Step 5: Solve for x
    x = 822,752,666.02/27,406.76
  6. Step 6: Final answer
    x = 30,020.07

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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.