Home / 38,962.15-53,768.02-21,057.11

Finding the Fourth Proportional to 38,962.15, 53,768.02 and 21,057.11

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Solution

The fourth proportional to 38,962.15, 53,768.02 and 21,057.11 is: 29,058.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,962.15 : 53,768.02 = 21,057.11 : x
  2. Step 2: Convert to fraction form
    38,962.15/53,768.02 = 21,057.11/x
  3. Step 3: Cross multiply
    38,962.15x = 53,768.02 × 21,057.11
  4. Step 4: Simplify right side
    38,962.15x = 1,132,199,111.62
  5. Step 5: Solve for x
    x = 1,132,199,111.62/38,962.15
  6. Step 6: Final answer
    x = 29,058.95

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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.