Home / 27,505.29-37,974.79-18,905.59

Finding the Fourth Proportional to 27,505.29, 37,974.79 and 18,905.59

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Solution

The fourth proportional to 27,505.29, 37,974.79 and 18,905.59 is: 26,101.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,505.29 : 37,974.79 = 18,905.59 : x
  2. Step 2: Convert to fraction form
    27,505.29/37,974.79 = 18,905.59/x
  3. Step 3: Cross multiply
    27,505.29x = 37,974.79 × 18,905.59
  4. Step 4: Simplify right side
    27,505.29x = 717,935,810.08
  5. Step 5: Solve for x
    x = 717,935,810.08/27,505.29
  6. Step 6: Final answer
    x = 26,101.74

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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.