Home / 28,269.59-39,013.11-15,523.83

Finding the Fourth Proportional to 28,269.59, 39,013.11 and 15,523.83

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Solution

The fourth proportional to 28,269.59, 39,013.11 and 15,523.83 is: 21,423.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,269.59 : 39,013.11 = 15,523.83 : x
  2. Step 2: Convert to fraction form
    28,269.59/39,013.11 = 15,523.83/x
  3. Step 3: Cross multiply
    28,269.59x = 39,013.11 × 15,523.83
  4. Step 4: Simplify right side
    28,269.59x = 605,632,887.41
  5. Step 5: Solve for x
    x = 605,632,887.41/28,269.59
  6. Step 6: Final answer
    x = 21,423.48

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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.