Home / 28,818.96-39,770.34-16,072.95

Finding the Fourth Proportional to 28,818.96, 39,770.34 and 16,072.95

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Solution

The fourth proportional to 28,818.96, 39,770.34 and 16,072.95 is: 22,180.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,818.96 : 39,770.34 = 16,072.95 : x
  2. Step 2: Convert to fraction form
    28,818.96/39,770.34 = 16,072.95/x
  3. Step 3: Cross multiply
    28,818.96x = 39,770.34 × 16,072.95
  4. Step 4: Simplify right side
    28,818.96x = 639,226,686.30
  5. Step 5: Solve for x
    x = 639,226,686.30/28,818.96
  6. Step 6: Final answer
    x = 22,180.77

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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.