Home / 19,719.88-29,510.70-15,309.16

Finding the Fourth Proportional to 19,719.88, 29,510.70 and 15,309.16

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Solution

The fourth proportional to 19,719.88, 29,510.70 and 15,309.16 is: 22,910.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,719.88 : 29,510.70 = 15,309.16 : x
  2. Step 2: Convert to fraction form
    19,719.88/29,510.70 = 15,309.16/x
  3. Step 3: Cross multiply
    19,719.88x = 29,510.70 × 15,309.16
  4. Step 4: Simplify right side
    19,719.88x = 451,784,028.01
  5. Step 5: Solve for x
    x = 451,784,028.01/19,719.88
  6. Step 6: Final answer
    x = 22,910.08

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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.