Home / 21,186.06-31,787.45-8,041.92

Finding the Fourth Proportional to 21,186.06, 31,787.45 and 8,041.92

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Solution

The fourth proportional to 21,186.06, 31,787.45 and 8,041.92 is: 12,066.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,186.06 : 31,787.45 = 8,041.92 : x
  2. Step 2: Convert to fraction form
    21,186.06/31,787.45 = 8,041.92/x
  3. Step 3: Cross multiply
    21,186.06x = 31,787.45 × 8,041.92
  4. Step 4: Simplify right side
    21,186.06x = 255,632,129.90
  5. Step 5: Solve for x
    x = 255,632,129.90/21,186.06
  6. Step 6: Final answer
    x = 12,066.05

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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.