Home / 27,125.40-40,694.28-12,338.64

Finding the Fourth Proportional to 27,125.40, 40,694.28 and 12,338.64

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Solution

The fourth proportional to 27,125.40, 40,694.28 and 12,338.64 is: 18,510.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,125.40 : 40,694.28 = 12,338.64 : x
  2. Step 2: Convert to fraction form
    27,125.40/40,694.28 = 12,338.64/x
  3. Step 3: Cross multiply
    27,125.40x = 40,694.28 × 12,338.64
  4. Step 4: Simplify right side
    27,125.40x = 502,112,070.98
  5. Step 5: Solve for x
    x = 502,112,070.98/27,125.40
  6. Step 6: Final answer
    x = 18,510.77

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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.