Home / 27,912.50-38,529.36-18,484.10

Finding the Fourth Proportional to 27,912.50, 38,529.36 and 18,484.10

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Solution

The fourth proportional to 27,912.50, 38,529.36 and 18,484.10 is: 25,514.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,912.50 : 38,529.36 = 18,484.10 : x
  2. Step 2: Convert to fraction form
    27,912.50/38,529.36 = 18,484.10/x
  3. Step 3: Cross multiply
    27,912.50x = 38,529.36 × 18,484.10
  4. Step 4: Simplify right side
    27,912.50x = 712,180,543.18
  5. Step 5: Solve for x
    x = 712,180,543.18/27,912.50
  6. Step 6: Final answer
    x = 25,514.75

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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.