Home / 22,372.66-30,875.88-13,420.54

Finding the Fourth Proportional to 22,372.66, 30,875.88 and 13,420.54

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Solution

The fourth proportional to 22,372.66, 30,875.88 and 13,420.54 is: 18,521.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,372.66 : 30,875.88 = 13,420.54 : x
  2. Step 2: Convert to fraction form
    22,372.66/30,875.88 = 13,420.54/x
  3. Step 3: Cross multiply
    22,372.66x = 30,875.88 × 13,420.54
  4. Step 4: Simplify right side
    22,372.66x = 414,370,982.58
  5. Step 5: Solve for x
    x = 414,370,982.58/22,372.66
  6. Step 6: Final answer
    x = 18,521.31

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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.