Home / 27,121.80-40,681.26-8,652.36

Finding the Fourth Proportional to 27,121.80, 40,681.26 and 8,652.36

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Solution

The fourth proportional to 27,121.80, 40,681.26 and 8,652.36 is: 12,978.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,121.80 : 40,681.26 = 8,652.36 : x
  2. Step 2: Convert to fraction form
    27,121.80/40,681.26 = 8,652.36/x
  3. Step 3: Cross multiply
    27,121.80x = 40,681.26 × 8,652.36
  4. Step 4: Simplify right side
    27,121.80x = 351,988,906.77
  5. Step 5: Solve for x
    x = 351,988,906.77/27,121.80
  6. Step 6: Final answer
    x = 12,978.08

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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.