Home / 38,235.47-52,763.13-21,240.80

Finding the Fourth Proportional to 38,235.47, 52,763.13 and 21,240.80

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Solution

The fourth proportional to 38,235.47, 52,763.13 and 21,240.80 is: 29,311.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,235.47 : 52,763.13 = 21,240.80 : x
  2. Step 2: Convert to fraction form
    38,235.47/52,763.13 = 21,240.80/x
  3. Step 3: Cross multiply
    38,235.47x = 52,763.13 × 21,240.80
  4. Step 4: Simplify right side
    38,235.47x = 1,120,731,091.70
  5. Step 5: Solve for x
    x = 1,120,731,091.70/38,235.47
  6. Step 6: Final answer
    x = 29,311.29

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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.