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Finding the Fourth Proportional to 22,473.60, 31,011.90 and 13,040.34

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Solution

The fourth proportional to 22,473.60, 31,011.90 and 13,040.34 is: 17,994.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,473.60 : 31,011.90 = 13,040.34 : x
  2. Step 2: Convert to fraction form
    22,473.60/31,011.90 = 13,040.34/x
  3. Step 3: Cross multiply
    22,473.60x = 31,011.90 × 13,040.34
  4. Step 4: Simplify right side
    22,473.60x = 404,405,720.05
  5. Step 5: Solve for x
    x = 404,405,720.05/22,473.60
  6. Step 6: Final answer
    x = 17,994.70

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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.