Home / 19,530.93-26,948.01-11,571.78

Finding the Fourth Proportional to 19,530.93, 26,948.01 and 11,571.78

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Solution

The fourth proportional to 19,530.93, 26,948.01 and 11,571.78 is: 15,966.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,530.93 : 26,948.01 = 11,571.78 : x
  2. Step 2: Convert to fraction form
    19,530.93/26,948.01 = 11,571.78/x
  3. Step 3: Cross multiply
    19,530.93x = 26,948.01 × 11,571.78
  4. Step 4: Simplify right side
    19,530.93x = 311,836,443.16
  5. Step 5: Solve for x
    x = 311,836,443.16/19,530.93
  6. Step 6: Final answer
    x = 15,966.29

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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.