Home / 38,122.05-52,606.89-21,126.54

Finding the Fourth Proportional to 38,122.05, 52,606.89 and 21,126.54

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Solution

The fourth proportional to 38,122.05, 52,606.89 and 21,126.54 is: 29,153.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,122.05 : 52,606.89 = 21,126.54 : x
  2. Step 2: Convert to fraction form
    38,122.05/52,606.89 = 21,126.54/x
  3. Step 3: Cross multiply
    38,122.05x = 52,606.89 × 21,126.54
  4. Step 4: Simplify right side
    38,122.05x = 1,111,401,565.86
  5. Step 5: Solve for x
    x = 1,111,401,565.86/38,122.05
  6. Step 6: Final answer
    x = 29,153.77

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Half scale
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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.