Home / 28,073.85-38,740.25-15,324.50

Finding the Fourth Proportional to 28,073.85, 38,740.25 and 15,324.50

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Solution

The fourth proportional to 28,073.85, 38,740.25 and 15,324.50 is: 21,146.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,073.85 : 38,740.25 = 15,324.50 : x
  2. Step 2: Convert to fraction form
    28,073.85/38,740.25 = 15,324.50/x
  3. Step 3: Cross multiply
    28,073.85x = 38,740.25 × 15,324.50
  4. Step 4: Simplify right side
    28,073.85x = 593,674,805.73
  5. Step 5: Solve for x
    x = 593,674,805.73/28,073.85
  6. Step 6: Final answer
    x = 21,146.90

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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.