Home / 38,122.10-52,608.81-21,126.63

Finding the Fourth Proportional to 38,122.10, 52,608.81 and 21,126.63

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Solution

The fourth proportional to 38,122.10, 52,608.81 and 21,126.63 is: 29,154.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,122.10 : 52,608.81 = 21,126.63 : x
  2. Step 2: Convert to fraction form
    38,122.10/52,608.81 = 21,126.63/x
  3. Step 3: Cross multiply
    38,122.10x = 52,608.81 × 21,126.63
  4. Step 4: Simplify right side
    38,122.10x = 1,111,446,863.61
  5. Step 5: Solve for x
    x = 1,111,446,863.61/38,122.10
  6. Step 6: Final answer
    x = 29,154.93

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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.