Home / 38,390.56-52,982.22-21,626.80

Finding the Fourth Proportional to 38,390.56, 52,982.22 and 21,626.80

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Solution

The fourth proportional to 38,390.56, 52,982.22 and 21,626.80 is: 29,846.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,390.56 : 52,982.22 = 21,626.80 : x
  2. Step 2: Convert to fraction form
    38,390.56/52,982.22 = 21,626.80/x
  3. Step 3: Cross multiply
    38,390.56x = 52,982.22 × 21,626.80
  4. Step 4: Simplify right side
    38,390.56x = 1,145,835,875.50
  5. Step 5: Solve for x
    x = 1,145,835,875.50/38,390.56
  6. Step 6: Final answer
    x = 29,846.81

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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.