Home / 39,990.04-54,786.10-38,494.76

Finding the Fourth Proportional to 39,990.04, 54,786.10 and 38,494.76

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Solution

The fourth proportional to 39,990.04, 54,786.10 and 38,494.76 is: 52,737.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,990.04 : 54,786.10 = 38,494.76 : x
  2. Step 2: Convert to fraction form
    39,990.04/54,786.10 = 38,494.76/x
  3. Step 3: Cross multiply
    39,990.04x = 54,786.10 × 38,494.76
  4. Step 4: Simplify right side
    39,990.04x = 2,108,977,770.84
  5. Step 5: Solve for x
    x = 2,108,977,770.84/39,990.04
  6. Step 6: Final answer
    x = 52,737.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.