Home / 28,382.50-39,102.64-22,411.99

Finding the Fourth Proportional to 28,382.50, 39,102.64 and 22,411.99

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Solution

The fourth proportional to 28,382.50, 39,102.64 and 22,411.99 is: 30,877.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,382.50 : 39,102.64 = 22,411.99 : x
  2. Step 2: Convert to fraction form
    28,382.50/39,102.64 = 22,411.99/x
  3. Step 3: Cross multiply
    28,382.50x = 39,102.64 × 22,411.99
  4. Step 4: Simplify right side
    28,382.50x = 876,367,976.65
  5. Step 5: Solve for x
    x = 876,367,976.65/28,382.50
  6. Step 6: Final answer
    x = 30,877.05

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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.