Home / 22,385.43-30,889.49-13,307.54

Finding the Fourth Proportional to 22,385.43, 30,889.49 and 13,307.54

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Solution

The fourth proportional to 22,385.43, 30,889.49 and 13,307.54 is: 18,362.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,385.43 : 30,889.49 = 13,307.54 : x
  2. Step 2: Convert to fraction form
    22,385.43/30,889.49 = 13,307.54/x
  3. Step 3: Cross multiply
    22,385.43x = 30,889.49 × 13,307.54
  4. Step 4: Simplify right side
    22,385.43x = 411,062,902.77
  5. Step 5: Solve for x
    x = 411,062,902.77/22,385.43
  6. Step 6: Final answer
    x = 18,362.97

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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.