Home / 20,260.54-30,401.34-15,328.72

Finding the Fourth Proportional to 20,260.54, 30,401.34 and 15,328.72

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Solution

The fourth proportional to 20,260.54, 30,401.34 and 15,328.72 is: 23,001.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,260.54 : 30,401.34 = 15,328.72 : x
  2. Step 2: Convert to fraction form
    20,260.54/30,401.34 = 15,328.72/x
  3. Step 3: Cross multiply
    20,260.54x = 30,401.34 × 15,328.72
  4. Step 4: Simplify right side
    20,260.54x = 466,013,628.48
  5. Step 5: Solve for x
    x = 466,013,628.48/20,260.54
  6. Step 6: Final answer
    x = 23,001.05

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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.