Home / 27,869.19-38,459.37-15,122.42

Finding the Fourth Proportional to 27,869.19, 38,459.37 and 15,122.42

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Solution

The fourth proportional to 27,869.19, 38,459.37 and 15,122.42 is: 20,868.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,869.19 : 38,459.37 = 15,122.42 : x
  2. Step 2: Convert to fraction form
    27,869.19/38,459.37 = 15,122.42/x
  3. Step 3: Cross multiply
    27,869.19x = 38,459.37 × 15,122.42
  4. Step 4: Simplify right side
    27,869.19x = 581,598,746.08
  5. Step 5: Solve for x
    x = 581,598,746.08/27,869.19
  6. Step 6: Final answer
    x = 20,868.88

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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.