Home / 38,385.56-52,975.32-21,621.80

Finding the Fourth Proportional to 38,385.56, 52,975.32 and 21,621.80

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Solution

The fourth proportional to 38,385.56, 52,975.32 and 21,621.80 is: 29,839.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,385.56 : 52,975.32 = 21,621.80 : x
  2. Step 2: Convert to fraction form
    38,385.56/52,975.32 = 21,621.80/x
  3. Step 3: Cross multiply
    38,385.56x = 52,975.32 × 21,621.80
  4. Step 4: Simplify right side
    38,385.56x = 1,145,421,773.98
  5. Step 5: Solve for x
    x = 1,145,421,773.98/38,385.56
  6. Step 6: Final answer
    x = 29,839.91

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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.