Home / 28,818.90-39,769.29-16,072.47

Finding the Fourth Proportional to 28,818.90, 39,769.29 and 16,072.47

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Solution

The fourth proportional to 28,818.90, 39,769.29 and 16,072.47 is: 22,179.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,818.90 : 39,769.29 = 16,072.47 : x
  2. Step 2: Convert to fraction form
    28,818.90/39,769.29 = 16,072.47/x
  3. Step 3: Cross multiply
    28,818.90x = 39,769.29 × 16,072.47
  4. Step 4: Simplify right side
    28,818.90x = 639,190,720.45
  5. Step 5: Solve for x
    x = 639,190,720.45/28,818.90
  6. Step 6: Final answer
    x = 22,179.57

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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.