Home / 28,647.10-39,534.78-16,071.58

Finding the Fourth Proportional to 28,647.10, 39,534.78 and 16,071.58

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Solution

The fourth proportional to 28,647.10, 39,534.78 and 16,071.58 is: 22,179.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,647.10 : 39,534.78 = 16,071.58 : x
  2. Step 2: Convert to fraction form
    28,647.10/39,534.78 = 16,071.58/x
  3. Step 3: Cross multiply
    28,647.10x = 39,534.78 × 16,071.58
  4. Step 4: Simplify right side
    28,647.10x = 635,386,379.55
  5. Step 5: Solve for x
    x = 635,386,379.55/28,647.10
  6. Step 6: Final answer
    x = 22,179.78

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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.