Home / 27,521.10-37,994.87-18,117

Finding the Fourth Proportional to 27,521.10, 37,994.87 and 18,117

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Solution

The fourth proportional to 27,521.10, 37,994.87 and 18,117 is: 25,011.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,521.10 : 37,994.87 = 18,117 : x
  2. Step 2: Convert to fraction form
    27,521.10/37,994.87 = 18,117/x
  3. Step 3: Cross multiply
    27,521.10x = 37,994.87 × 18,117
  4. Step 4: Simplify right side
    27,521.10x = 688,353,105.08
  5. Step 5: Solve for x
    x = 688,353,105.08/27,521.10
  6. Step 6: Final answer
    x = 25,011.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.