Home / 38,172.91-52,678.53-21,179.74

Finding the Fourth Proportional to 38,172.91, 52,678.53 and 21,179.74

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Solution

The fourth proportional to 38,172.91, 52,678.53 and 21,179.74 is: 29,227.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,172.91 : 52,678.53 = 21,179.74 : x
  2. Step 2: Convert to fraction form
    38,172.91/52,678.53 = 21,179.74/x
  3. Step 3: Cross multiply
    38,172.91x = 52,678.53 × 21,179.74
  4. Step 4: Simplify right side
    38,172.91x = 1,115,717,305.59
  5. Step 5: Solve for x
    x = 1,115,717,305.59/38,172.91
  6. Step 6: Final answer
    x = 29,227.99

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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.