Home / 39,740.50-54,841.88-21,836.66

Finding the Fourth Proportional to 39,740.50, 54,841.88 and 21,836.66

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Solution

The fourth proportional to 39,740.50, 54,841.88 and 21,836.66 is: 30,134.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,740.50 : 54,841.88 = 21,836.66 : x
  2. Step 2: Convert to fraction form
    39,740.50/54,841.88 = 21,836.66/x
  3. Step 3: Cross multiply
    39,740.50x = 54,841.88 × 21,836.66
  4. Step 4: Simplify right side
    39,740.50x = 1,197,563,391.47
  5. Step 5: Solve for x
    x = 1,197,563,391.47/39,740.50
  6. Step 6: Final answer
    x = 30,134.58

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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.