Home / 28,007.54-38,650.24-15,260.70

Finding the Fourth Proportional to 28,007.54, 38,650.24 and 15,260.70

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Solution

The fourth proportional to 28,007.54, 38,650.24 and 15,260.70 is: 21,059.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,007.54 : 38,650.24 = 15,260.70 : x
  2. Step 2: Convert to fraction form
    28,007.54/38,650.24 = 15,260.70/x
  3. Step 3: Cross multiply
    28,007.54x = 38,650.24 × 15,260.70
  4. Step 4: Simplify right side
    28,007.54x = 589,829,717.57
  5. Step 5: Solve for x
    x = 589,829,717.57/28,007.54
  6. Step 6: Final answer
    x = 21,059.68

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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.