Home / 38,189.91-52,697.76-21,189.74

Finding the Fourth Proportional to 38,189.91, 52,697.76 and 21,189.74

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Solution

The fourth proportional to 38,189.91, 52,697.76 and 21,189.74 is: 29,239.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,189.91 : 52,697.76 = 21,189.74 : x
  2. Step 2: Convert to fraction form
    38,189.91/52,697.76 = 21,189.74/x
  3. Step 3: Cross multiply
    38,189.91x = 52,697.76 × 21,189.74
  4. Step 4: Simplify right side
    38,189.91x = 1,116,651,490.03
  5. Step 5: Solve for x
    x = 1,116,651,490.03/38,189.91
  6. Step 6: Final answer
    x = 29,239.43

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Double scale
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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.