Home / 28,221.50-42,326.78-26,816.55

Finding the Fourth Proportional to 28,221.50, 42,326.78 and 26,816.55

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Solution

The fourth proportional to 28,221.50, 42,326.78 and 26,816.55 is: 40,219.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,221.50 : 42,326.78 = 26,816.55 : x
  2. Step 2: Convert to fraction form
    28,221.50/42,326.78 = 26,816.55/x
  3. Step 3: Cross multiply
    28,221.50x = 42,326.78 × 26,816.55
  4. Step 4: Simplify right side
    28,221.50x = 1,135,058,078.13
  5. Step 5: Solve for x
    x = 1,135,058,078.13/28,221.50
  6. Step 6: Final answer
    x = 40,219.63

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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.