Home / 18,122.40-24,944.70-13,398.48

Finding the Fourth Proportional to 18,122.40, 24,944.70 and 13,398.48

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Solution

The fourth proportional to 18,122.40, 24,944.70 and 13,398.48 is: 18,442.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,122.40 : 24,944.70 = 13,398.48 : x
  2. Step 2: Convert to fraction form
    18,122.40/24,944.70 = 13,398.48/x
  3. Step 3: Cross multiply
    18,122.40x = 24,944.70 × 13,398.48
  4. Step 4: Simplify right side
    18,122.40x = 334,221,064.06
  5. Step 5: Solve for x
    x = 334,221,064.06/18,122.40
  6. Step 6: Final answer
    x = 18,442.43

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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.