Home / 22,991.14-31,727.75-13,437.60

Finding the Fourth Proportional to 22,991.14, 31,727.75 and 13,437.60

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Solution

The fourth proportional to 22,991.14, 31,727.75 and 13,437.60 is: 18,543.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,991.14 : 31,727.75 = 13,437.60 : x
  2. Step 2: Convert to fraction form
    22,991.14/31,727.75 = 13,437.60/x
  3. Step 3: Cross multiply
    22,991.14x = 31,727.75 × 13,437.60
  4. Step 4: Simplify right side
    22,991.14x = 426,344,702.82
  5. Step 5: Solve for x
    x = 426,344,702.82/22,991.14
  6. Step 6: Final answer
    x = 18,543.87

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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.