Home / 27,869.31-38,491.59-18,351.74

Finding the Fourth Proportional to 27,869.31, 38,491.59 and 18,351.74

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Solution

The fourth proportional to 27,869.31, 38,491.59 and 18,351.74 is: 25,346.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,869.31 : 38,491.59 = 18,351.74 : x
  2. Step 2: Convert to fraction form
    27,869.31/38,491.59 = 18,351.74/x
  3. Step 3: Cross multiply
    27,869.31x = 38,491.59 × 18,351.74
  4. Step 4: Simplify right side
    27,869.31x = 706,387,748.10
  5. Step 5: Solve for x
    x = 706,387,748.10/27,869.31
  6. Step 6: Final answer
    x = 25,346.44

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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.