Home / 28,557.09-39,405.69-16,622.82

Finding the Fourth Proportional to 28,557.09, 39,405.69 and 16,622.82

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Solution

The fourth proportional to 28,557.09, 39,405.69 and 16,622.82 is: 22,937.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,557.09 : 39,405.69 = 16,622.82 : x
  2. Step 2: Convert to fraction form
    28,557.09/39,405.69 = 16,622.82/x
  3. Step 3: Cross multiply
    28,557.09x = 39,405.69 × 16,622.82
  4. Step 4: Simplify right side
    28,557.09x = 655,033,691.85
  5. Step 5: Solve for x
    x = 655,033,691.85/28,557.09
  6. Step 6: Final answer
    x = 22,937.69

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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.