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Finding the Fourth Proportional to 27,079.64, 40,620.28 and 7,358.61

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Solution

The fourth proportional to 27,079.64, 40,620.28 and 7,358.61 is: 11,038.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,079.64 : 40,620.28 = 7,358.61 : x
  2. Step 2: Convert to fraction form
    27,079.64/40,620.28 = 7,358.61/x
  3. Step 3: Cross multiply
    27,079.64x = 40,620.28 × 7,358.61
  4. Step 4: Simplify right side
    27,079.64x = 298,908,798.61
  5. Step 5: Solve for x
    x = 298,908,798.61/27,079.64
  6. Step 6: Final answer
    x = 11,038.14

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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.