Home / 15,480.45-23,221.89-4,387.23

Finding the Fourth Proportional to 15,480.45, 23,221.89 and 4,387.23

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Solution

The fourth proportional to 15,480.45, 23,221.89 and 4,387.23 is: 6,581.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,480.45 : 23,221.89 = 4,387.23 : x
  2. Step 2: Convert to fraction form
    15,480.45/23,221.89 = 4,387.23/x
  3. Step 3: Cross multiply
    15,480.45x = 23,221.89 × 4,387.23
  4. Step 4: Simplify right side
    15,480.45x = 101,879,772.46
  5. Step 5: Solve for x
    x = 101,879,772.46/15,480.45
  6. Step 6: Final answer
    x = 6,581.19

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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.