Home / 38,121.02-52,608.68-21,125.22

Finding the Fourth Proportional to 38,121.02, 52,608.68 and 21,125.22

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Solution

The fourth proportional to 38,121.02, 52,608.68 and 21,125.22 is: 29,153.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,121.02 : 52,608.68 = 21,125.22 : x
  2. Step 2: Convert to fraction form
    38,121.02/52,608.68 = 21,125.22/x
  3. Step 3: Cross multiply
    38,121.02x = 52,608.68 × 21,125.22
  4. Step 4: Simplify right side
    38,121.02x = 1,111,370,109.79
  5. Step 5: Solve for x
    x = 1,111,370,109.79/38,121.02
  6. Step 6: Final answer
    x = 29,153.74

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Double scale
Find fourth proportional to 38,122.02, 52,610.06 and 21,126.22
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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.