Home / 18,430.36-25,431.34-10,362.92

Finding the Fourth Proportional to 18,430.36, 25,431.34 and 10,362.92

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Solution

The fourth proportional to 18,430.36, 25,431.34 and 10,362.92 is: 14,299.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,430.36 : 25,431.34 = 10,362.92 : x
  2. Step 2: Convert to fraction form
    18,430.36/25,431.34 = 10,362.92/x
  3. Step 3: Cross multiply
    18,430.36x = 25,431.34 × 10,362.92
  4. Step 4: Simplify right side
    18,430.36x = 263,542,941.91
  5. Step 5: Solve for x
    x = 263,542,941.91/18,430.36
  6. Step 6: Final answer
    x = 14,299.39

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Double scale
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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.