Home / 22,520.65-31,087.26-20,158.69

Finding the Fourth Proportional to 22,520.65, 31,087.26 and 20,158.69

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Solution

The fourth proportional to 22,520.65, 31,087.26 and 20,158.69 is: 27,826.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,520.65 : 31,087.26 = 20,158.69 : x
  2. Step 2: Convert to fraction form
    22,520.65/31,087.26 = 20,158.69/x
  3. Step 3: Cross multiply
    22,520.65x = 31,087.26 × 20,158.69
  4. Step 4: Simplify right side
    22,520.65x = 626,678,437.29
  5. Step 5: Solve for x
    x = 626,678,437.29/22,520.65
  6. Step 6: Final answer
    x = 27,826.84

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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.