Home / 28,815.69-39,764.12-16,070.18

Finding the Fourth Proportional to 28,815.69, 39,764.12 and 16,070.18

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Solution

The fourth proportional to 28,815.69, 39,764.12 and 16,070.18 is: 22,175.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,815.69 : 39,764.12 = 16,070.18 : x
  2. Step 2: Convert to fraction form
    28,815.69/39,764.12 = 16,070.18/x
  3. Step 3: Cross multiply
    28,815.69x = 39,764.12 × 16,070.18
  4. Step 4: Simplify right side
    28,815.69x = 639,016,485.59
  5. Step 5: Solve for x
    x = 639,016,485.59/28,815.69
  6. Step 6: Final answer
    x = 22,175.99

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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.