Home / 28,604.46-39,470.38-15,856.99

Finding the Fourth Proportional to 28,604.46, 39,470.38 and 15,856.99

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Solution

The fourth proportional to 28,604.46, 39,470.38 and 15,856.99 is: 21,880.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,604.46 : 39,470.38 = 15,856.99 : x
  2. Step 2: Convert to fraction form
    28,604.46/39,470.38 = 15,856.99/x
  3. Step 3: Cross multiply
    28,604.46x = 39,470.38 × 15,856.99
  4. Step 4: Simplify right side
    28,604.46x = 625,881,420.96
  5. Step 5: Solve for x
    x = 625,881,420.96/28,604.46
  6. Step 6: Final answer
    x = 21,880.55

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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.