Home / 38,217.50-52,743.30-21,222.80

Finding the Fourth Proportional to 38,217.50, 52,743.30 and 21,222.80

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Solution

The fourth proportional to 38,217.50, 52,743.30 and 21,222.80 is: 29,289.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,217.50 : 52,743.30 = 21,222.80 : x
  2. Step 2: Convert to fraction form
    38,217.50/52,743.30 = 21,222.80/x
  3. Step 3: Cross multiply
    38,217.50x = 52,743.30 × 21,222.80
  4. Step 4: Simplify right side
    38,217.50x = 1,119,360,507.24
  5. Step 5: Solve for x
    x = 1,119,360,507.24/38,217.50
  6. Step 6: Final answer
    x = 29,289.21

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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.