Home / 19,378.18-26,742.28-15,134.18

Finding the Fourth Proportional to 19,378.18, 26,742.28 and 15,134.18

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Solution

The fourth proportional to 19,378.18, 26,742.28 and 15,134.18 is: 20,885.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,378.18 : 26,742.28 = 15,134.18 : x
  2. Step 2: Convert to fraction form
    19,378.18/26,742.28 = 15,134.18/x
  3. Step 3: Cross multiply
    19,378.18x = 26,742.28 × 15,134.18
  4. Step 4: Simplify right side
    19,378.18x = 404,722,508.15
  5. Step 5: Solve for x
    x = 404,722,508.15/19,378.18
  6. Step 6: Final answer
    x = 20,885.48

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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.