Home / 28,511.80-42,686.70-26,960.20

Finding the Fourth Proportional to 28,511.80, 42,686.70 and 26,960.20

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Solution

The fourth proportional to 28,511.80, 42,686.70 and 26,960.20 is: 40,363.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,511.80 : 42,686.70 = 26,960.20 : x
  2. Step 2: Convert to fraction form
    28,511.80/42,686.70 = 26,960.20/x
  3. Step 3: Cross multiply
    28,511.80x = 42,686.70 × 26,960.20
  4. Step 4: Simplify right side
    28,511.80x = 1,150,841,969.34
  5. Step 5: Solve for x
    x = 1,150,841,969.34/28,511.80
  6. Step 6: Final answer
    x = 40,363.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.