Home / 27,133.16-40,701.28-8,415.86

Finding the Fourth Proportional to 27,133.16, 40,701.28 and 8,415.86

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Solution

The fourth proportional to 27,133.16, 40,701.28 and 8,415.86 is: 12,624.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,133.16 : 40,701.28 = 8,415.86 : x
  2. Step 2: Convert to fraction form
    27,133.16/40,701.28 = 8,415.86/x
  3. Step 3: Cross multiply
    27,133.16x = 40,701.28 × 8,415.86
  4. Step 4: Simplify right side
    27,133.16x = 342,536,274.30
  5. Step 5: Solve for x
    x = 342,536,274.30/27,133.16
  6. Step 6: Final answer
    x = 12,624.27

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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.