Home / 19,439.10-26,834.67-15,122.43

Finding the Fourth Proportional to 19,439.10, 26,834.67 and 15,122.43

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Solution

The fourth proportional to 19,439.10, 26,834.67 and 15,122.43 is: 20,875.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,439.10 : 26,834.67 = 15,122.43 : x
  2. Step 2: Convert to fraction form
    19,439.10/26,834.67 = 15,122.43/x
  3. Step 3: Cross multiply
    19,439.10x = 26,834.67 × 15,122.43
  4. Step 4: Simplify right side
    19,439.10x = 405,805,418.65
  5. Step 5: Solve for x
    x = 405,805,418.65/19,439.10
  6. Step 6: Final answer
    x = 20,875.73

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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.