Home / 27,145.44-40,691.21-12,888.92

Finding the Fourth Proportional to 27,145.44, 40,691.21 and 12,888.92

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Solution

The fourth proportional to 27,145.44, 40,691.21 and 12,888.92 is: 19,320.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,145.44 : 40,691.21 = 12,888.92 : x
  2. Step 2: Convert to fraction form
    27,145.44/40,691.21 = 12,888.92/x
  3. Step 3: Cross multiply
    27,145.44x = 40,691.21 × 12,888.92
  4. Step 4: Simplify right side
    27,145.44x = 524,465,482.49
  5. Step 5: Solve for x
    x = 524,465,482.49/27,145.44
  6. Step 6: Final answer
    x = 19,320.57

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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.