Home / 27,820.20-41,730.30-10,286.40

Finding the Fourth Proportional to 27,820.20, 41,730.30 and 10,286.40

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Solution

The fourth proportional to 27,820.20, 41,730.30 and 10,286.40 is: 15,429.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,820.20 : 41,730.30 = 10,286.40 : x
  2. Step 2: Convert to fraction form
    27,820.20/41,730.30 = 10,286.40/x
  3. Step 3: Cross multiply
    27,820.20x = 41,730.30 × 10,286.40
  4. Step 4: Simplify right side
    27,820.20x = 429,254,557.92
  5. Step 5: Solve for x
    x = 429,254,557.92/27,820.20
  6. Step 6: Final answer
    x = 15,429.60

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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.