Home / 27,158.98-40,777.35-20,160.58

Finding the Fourth Proportional to 27,158.98, 40,777.35 and 20,160.58

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Solution

The fourth proportional to 27,158.98, 40,777.35 and 20,160.58 is: 30,269.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,158.98 : 40,777.35 = 20,160.58 : x
  2. Step 2: Convert to fraction form
    27,158.98/40,777.35 = 20,160.58/x
  3. Step 3: Cross multiply
    27,158.98x = 40,777.35 × 20,160.58
  4. Step 4: Simplify right side
    27,158.98x = 822,095,026.86
  5. Step 5: Solve for x
    x = 822,095,026.86/27,158.98
  6. Step 6: Final answer
    x = 30,269.73

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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.