Home / 25,480.10-38,256.60-18,117.20

Finding the Fourth Proportional to 25,480.10, 38,256.60 and 18,117.20

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Solution

The fourth proportional to 25,480.10, 38,256.60 and 18,117.20 is: 27,201.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,480.10 : 38,256.60 = 18,117.20 : x
  2. Step 2: Convert to fraction form
    25,480.10/38,256.60 = 18,117.20/x
  3. Step 3: Cross multiply
    25,480.10x = 38,256.60 × 18,117.20
  4. Step 4: Simplify right side
    25,480.10x = 693,102,473.52
  5. Step 5: Solve for x
    x = 693,102,473.52/25,480.10
  6. Step 6: Final answer
    x = 27,201.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.