Home / 19,256.78-26,491.10-15,712.22

Finding the Fourth Proportional to 19,256.78, 26,491.10 and 15,712.22

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Solution

The fourth proportional to 19,256.78, 26,491.10 and 15,712.22 is: 21,614.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,256.78 : 26,491.10 = 15,712.22 : x
  2. Step 2: Convert to fraction form
    19,256.78/26,491.10 = 15,712.22/x
  3. Step 3: Cross multiply
    19,256.78x = 26,491.10 × 15,712.22
  4. Step 4: Simplify right side
    19,256.78x = 416,233,991.24
  5. Step 5: Solve for x
    x = 416,233,991.24/19,256.78
  6. Step 6: Final answer
    x = 21,614.93

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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.