Home / 28,826.49-39,780.61-16,080.50

Finding the Fourth Proportional to 28,826.49, 39,780.61 and 16,080.50

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Solution

The fourth proportional to 28,826.49, 39,780.61 and 16,080.50 is: 22,191.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,826.49 : 39,780.61 = 16,080.50 : x
  2. Step 2: Convert to fraction form
    28,826.49/39,780.61 = 16,080.50/x
  3. Step 3: Cross multiply
    28,826.49x = 39,780.61 × 16,080.50
  4. Step 4: Simplify right side
    28,826.49x = 639,692,158.36
  5. Step 5: Solve for x
    x = 639,692,158.36/28,826.49
  6. Step 6: Final answer
    x = 22,191.12

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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.