Home / 28,219.57-38,935.12-22,232.66

Finding the Fourth Proportional to 28,219.57, 38,935.12 and 22,232.66

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Solution

The fourth proportional to 28,219.57, 38,935.12 and 22,232.66 is: 30,674.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,219.57 : 38,935.12 = 22,232.66 : x
  2. Step 2: Convert to fraction form
    28,219.57/38,935.12 = 22,232.66/x
  3. Step 3: Cross multiply
    28,219.57x = 38,935.12 × 22,232.66
  4. Step 4: Simplify right side
    28,219.57x = 865,631,285.02
  5. Step 5: Solve for x
    x = 865,631,285.02/28,219.57
  6. Step 6: Final answer
    x = 30,674.86

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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.