Home / 28,367.80-42,551.70-26,618.20

Finding the Fourth Proportional to 28,367.80, 42,551.70 and 26,618.20

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Solution

The fourth proportional to 28,367.80, 42,551.70 and 26,618.20 is: 39,927.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,367.80 : 42,551.70 = 26,618.20 : x
  2. Step 2: Convert to fraction form
    28,367.80/42,551.70 = 26,618.20/x
  3. Step 3: Cross multiply
    28,367.80x = 42,551.70 × 26,618.20
  4. Step 4: Simplify right side
    28,367.80x = 1,132,649,660.94
  5. Step 5: Solve for x
    x = 1,132,649,660.94/28,367.80
  6. Step 6: Final answer
    x = 39,927.30

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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.