Home / 27,739.16-38,280.08-15,163.92

Finding the Fourth Proportional to 27,739.16, 38,280.08 and 15,163.92

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Solution

The fourth proportional to 27,739.16, 38,280.08 and 15,163.92 is: 20,926.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,739.16 : 38,280.08 = 15,163.92 : x
  2. Step 2: Convert to fraction form
    27,739.16/38,280.08 = 15,163.92/x
  3. Step 3: Cross multiply
    27,739.16x = 38,280.08 × 15,163.92
  4. Step 4: Simplify right side
    27,739.16x = 580,476,070.71
  5. Step 5: Solve for x
    x = 580,476,070.71/27,739.16
  6. Step 6: Final answer
    x = 20,926.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.