Home / 22,239.48-30,685.61-13,285.62

Finding the Fourth Proportional to 22,239.48, 30,685.61 and 13,285.62

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Solution

The fourth proportional to 22,239.48, 30,685.61 and 13,285.62 is: 18,331.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,239.48 : 30,685.61 = 13,285.62 : x
  2. Step 2: Convert to fraction form
    22,239.48/30,685.61 = 13,285.62/x
  3. Step 3: Cross multiply
    22,239.48x = 30,685.61 × 13,285.62
  4. Step 4: Simplify right side
    22,239.48x = 407,677,353.93
  5. Step 5: Solve for x
    x = 407,677,353.93/22,239.48
  6. Step 6: Final answer
    x = 18,331.24

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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.