Home / 15,013.71-22,520.56-3,920.30

Finding the Fourth Proportional to 15,013.71, 22,520.56 and 3,920.30

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Solution

The fourth proportional to 15,013.71, 22,520.56 and 3,920.30 is: 5,880.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,013.71 : 22,520.56 = 3,920.30 : x
  2. Step 2: Convert to fraction form
    15,013.71/22,520.56 = 3,920.30/x
  3. Step 3: Cross multiply
    15,013.71x = 22,520.56 × 3,920.30
  4. Step 4: Simplify right side
    15,013.71x = 88,287,351.37
  5. Step 5: Solve for x
    x = 88,287,351.37/15,013.71
  6. Step 6: Final answer
    x = 5,880.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.