Home / 22,239.72-30,690.06-13,285.14

Finding the Fourth Proportional to 22,239.72, 30,690.06 and 13,285.14

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Solution

The fourth proportional to 22,239.72, 30,690.06 and 13,285.14 is: 18,333.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,239.72 : 30,690.06 = 13,285.14 : x
  2. Step 2: Convert to fraction form
    22,239.72/30,690.06 = 13,285.14/x
  3. Step 3: Cross multiply
    22,239.72x = 30,690.06 × 13,285.14
  4. Step 4: Simplify right side
    22,239.72x = 407,721,743.71
  5. Step 5: Solve for x
    x = 407,721,743.71/22,239.72
  6. Step 6: Final answer
    x = 18,333.04

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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.