Home / 19,563.95-27,012.22-15,469.65

Finding the Fourth Proportional to 19,563.95, 27,012.22 and 15,469.65

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Solution

The fourth proportional to 19,563.95, 27,012.22 and 15,469.65 is: 21,359.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,563.95 : 27,012.22 = 15,469.65 : x
  2. Step 2: Convert to fraction form
    19,563.95/27,012.22 = 15,469.65/x
  3. Step 3: Cross multiply
    19,563.95x = 27,012.22 × 15,469.65
  4. Step 4: Simplify right side
    19,563.95x = 417,869,550.45
  5. Step 5: Solve for x
    x = 417,869,550.45/19,563.95
  6. Step 6: Final answer
    x = 21,359.16

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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.