Home / 28,760.05-39,681.12-16,826.32

Finding the Fourth Proportional to 28,760.05, 39,681.12 and 16,826.32

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Solution

The fourth proportional to 28,760.05, 39,681.12 and 16,826.32 is: 23,215.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,760.05 : 39,681.12 = 16,826.32 : x
  2. Step 2: Convert to fraction form
    28,760.05/39,681.12 = 16,826.32/x
  3. Step 3: Cross multiply
    28,760.05x = 39,681.12 × 16,826.32
  4. Step 4: Simplify right side
    28,760.05x = 667,687,223.08
  5. Step 5: Solve for x
    x = 667,687,223.08/28,760.05
  6. Step 6: Final answer
    x = 23,215.79

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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.