Home / 21,207.65-31,769.86-17,263.15

Finding the Fourth Proportional to 21,207.65, 31,769.86 and 17,263.15

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Solution

The fourth proportional to 21,207.65, 31,769.86 and 17,263.15 is: 25,860.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,207.65 : 31,769.86 = 17,263.15 : x
  2. Step 2: Convert to fraction form
    21,207.65/31,769.86 = 17,263.15/x
  3. Step 3: Cross multiply
    21,207.65x = 31,769.86 × 17,263.15
  4. Step 4: Simplify right side
    21,207.65x = 548,447,736.08
  5. Step 5: Solve for x
    x = 548,447,736.08/21,207.65
  6. Step 6: Final answer
    x = 25,860.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.