Home / 27,990.78-38,626.08-16,045.86

Finding the Fourth Proportional to 27,990.78, 38,626.08 and 16,045.86

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Solution

The fourth proportional to 27,990.78, 38,626.08 and 16,045.86 is: 22,142.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,990.78 : 38,626.08 = 16,045.86 : x
  2. Step 2: Convert to fraction form
    27,990.78/38,626.08 = 16,045.86/x
  3. Step 3: Cross multiply
    27,990.78x = 38,626.08 × 16,045.86
  4. Step 4: Simplify right side
    27,990.78x = 619,788,672.03
  5. Step 5: Solve for x
    x = 619,788,672.03/27,990.78
  6. Step 6: Final answer
    x = 22,142.60

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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.