Home / 20,065.53-27,689.67-11,113.41

Finding the Fourth Proportional to 20,065.53, 27,689.67 and 11,113.41

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Solution

The fourth proportional to 20,065.53, 27,689.67 and 11,113.41 is: 15,336.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,065.53 : 27,689.67 = 11,113.41 : x
  2. Step 2: Convert to fraction form
    20,065.53/27,689.67 = 11,113.41/x
  3. Step 3: Cross multiply
    20,065.53x = 27,689.67 × 11,113.41
  4. Step 4: Simplify right side
    20,065.53x = 307,726,655.47
  5. Step 5: Solve for x
    x = 307,726,655.47/20,065.53
  6. Step 6: Final answer
    x = 15,336.08

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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.