Home / 38,159.91-52,659.32-21,164.90

Finding the Fourth Proportional to 38,159.91, 52,659.32 and 21,164.90

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Solution

The fourth proportional to 38,159.91, 52,659.32 and 21,164.90 is: 29,206.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,159.91 : 52,659.32 = 21,164.90 : x
  2. Step 2: Convert to fraction form
    38,159.91/52,659.32 = 21,164.90/x
  3. Step 3: Cross multiply
    38,159.91x = 52,659.32 × 21,164.90
  4. Step 4: Simplify right side
    38,159.91x = 1,114,528,872.75
  5. Step 5: Solve for x
    x = 1,114,528,872.75/38,159.91
  6. Step 6: Final answer
    x = 29,206.80

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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.