Home / 19,243.56-26,568.36-15,715.20

Finding the Fourth Proportional to 19,243.56, 26,568.36 and 15,715.20

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Solution

The fourth proportional to 19,243.56, 26,568.36 and 15,715.20 is: 21,696.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,243.56 : 26,568.36 = 15,715.20 : x
  2. Step 2: Convert to fraction form
    19,243.56/26,568.36 = 15,715.20/x
  3. Step 3: Cross multiply
    19,243.56x = 26,568.36 × 15,715.20
  4. Step 4: Simplify right side
    19,243.56x = 417,527,091.07
  5. Step 5: Solve for x
    x = 417,527,091.07/19,243.56
  6. Step 6: Final answer
    x = 21,696.98

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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.