Home / 27,101.90-40,640.70-12,303.20

Finding the Fourth Proportional to 27,101.90, 40,640.70 and 12,303.20

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Solution

The fourth proportional to 27,101.90, 40,640.70 and 12,303.20 is: 18,449.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,101.90 : 40,640.70 = 12,303.20 : x
  2. Step 2: Convert to fraction form
    27,101.90/40,640.70 = 12,303.20/x
  3. Step 3: Cross multiply
    27,101.90x = 40,640.70 × 12,303.20
  4. Step 4: Simplify right side
    27,101.90x = 500,010,660.24
  5. Step 5: Solve for x
    x = 500,010,660.24/27,101.90
  6. Step 6: Final answer
    x = 18,449.28

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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.