Home / 26,631.16-39,954.72-7,911.82

Finding the Fourth Proportional to 26,631.16, 39,954.72 and 7,911.82

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Solution

The fourth proportional to 26,631.16, 39,954.72 and 7,911.82 is: 11,870.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,631.16 : 39,954.72 = 7,911.82 : x
  2. Step 2: Convert to fraction form
    26,631.16/39,954.72 = 7,911.82/x
  3. Step 3: Cross multiply
    26,631.16x = 39,954.72 × 7,911.82
  4. Step 4: Simplify right side
    26,631.16x = 316,114,552.79
  5. Step 5: Solve for x
    x = 316,114,552.79/26,631.16
  6. Step 6: Final answer
    x = 11,870.10

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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.