Home / 28,859.12-39,826.62-16,758.72

Finding the Fourth Proportional to 28,859.12, 39,826.62 and 16,758.72

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Solution

The fourth proportional to 28,859.12, 39,826.62 and 16,758.72 is: 23,127.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,859.12 : 39,826.62 = 16,758.72 : x
  2. Step 2: Convert to fraction form
    28,859.12/39,826.62 = 16,758.72/x
  3. Step 3: Cross multiply
    28,859.12x = 39,826.62 × 16,758.72
  4. Step 4: Simplify right side
    28,859.12x = 667,443,173.13
  5. Step 5: Solve for x
    x = 667,443,173.13/28,859.12
  6. Step 6: Final answer
    x = 23,127.63

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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.