Home / 38,131.59-52,621.97-21,136.20

Finding the Fourth Proportional to 38,131.59, 52,621.97 and 21,136.20

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Solution

The fourth proportional to 38,131.59, 52,621.97 and 21,136.20 is: 29,168.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,131.59 : 52,621.97 = 21,136.20 : x
  2. Step 2: Convert to fraction form
    38,131.59/52,621.97 = 21,136.20/x
  3. Step 3: Cross multiply
    38,131.59x = 52,621.97 × 21,136.20
  4. Step 4: Simplify right side
    38,131.59x = 1,112,228,482.31
  5. Step 5: Solve for x
    x = 1,112,228,482.31/38,131.59
  6. Step 6: Final answer
    x = 29,168.16

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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.