Home / 27,769.74-38,298.02-19,687.43

Finding the Fourth Proportional to 27,769.74, 38,298.02 and 19,687.43

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Solution

The fourth proportional to 27,769.74, 38,298.02 and 19,687.43 is: 27,151.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,769.74 : 38,298.02 = 19,687.43 : x
  2. Step 2: Convert to fraction form
    27,769.74/38,298.02 = 19,687.43/x
  3. Step 3: Cross multiply
    27,769.74x = 38,298.02 × 19,687.43
  4. Step 4: Simplify right side
    27,769.74x = 753,989,297.96
  5. Step 5: Solve for x
    x = 753,989,297.96/27,769.74
  6. Step 6: Final answer
    x = 27,151.47

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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.