Home / 27,406.78-41,111.31-8,686.40

Finding the Fourth Proportional to 27,406.78, 41,111.31 and 8,686.40

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Solution

The fourth proportional to 27,406.78, 41,111.31 and 8,686.40 is: 13,029.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,406.78 : 41,111.31 = 8,686.40 : x
  2. Step 2: Convert to fraction form
    27,406.78/41,111.31 = 8,686.40/x
  3. Step 3: Cross multiply
    27,406.78x = 41,111.31 × 8,686.40
  4. Step 4: Simplify right side
    27,406.78x = 357,109,283.18
  5. Step 5: Solve for x
    x = 357,109,283.18/27,406.78
  6. Step 6: Final answer
    x = 13,029.96

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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.