Home / 27,285.30-40,889.55-20,210.10

Finding the Fourth Proportional to 27,285.30, 40,889.55 and 20,210.10

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Solution

The fourth proportional to 27,285.30, 40,889.55 and 20,210.10 is: 30,286.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,285.30 : 40,889.55 = 20,210.10 : x
  2. Step 2: Convert to fraction form
    27,285.30/40,889.55 = 20,210.10/x
  3. Step 3: Cross multiply
    27,285.30x = 40,889.55 × 20,210.10
  4. Step 4: Simplify right side
    27,285.30x = 826,381,894.46
  5. Step 5: Solve for x
    x = 826,381,894.46/27,285.30
  6. Step 6: Final answer
    x = 30,286.71

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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.