Home / 18,287.70-25,238.58-10,331.39

Finding the Fourth Proportional to 18,287.70, 25,238.58 and 10,331.39

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Solution

The fourth proportional to 18,287.70, 25,238.58 and 10,331.39 is: 14,258.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,287.70 : 25,238.58 = 10,331.39 : x
  2. Step 2: Convert to fraction form
    18,287.70/25,238.58 = 10,331.39/x
  3. Step 3: Cross multiply
    18,287.70x = 25,238.58 × 10,331.39
  4. Step 4: Simplify right side
    18,287.70x = 260,749,486.83
  5. Step 5: Solve for x
    x = 260,749,486.83/18,287.70
  6. Step 6: Final answer
    x = 14,258.19

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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.