Home / 38,122.58-52,609.47-21,127.11

Finding the Fourth Proportional to 38,122.58, 52,609.47 and 21,127.11

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Solution

The fourth proportional to 38,122.58, 52,609.47 and 21,127.11 is: 29,155.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,122.58 : 52,609.47 = 21,127.11 : x
  2. Step 2: Convert to fraction form
    38,122.58/52,609.47 = 21,127.11/x
  3. Step 3: Cross multiply
    38,122.58x = 52,609.47 × 21,127.11
  4. Step 4: Simplify right side
    38,122.58x = 1,111,486,059.73
  5. Step 5: Solve for x
    x = 1,111,486,059.73/38,122.58
  6. Step 6: Final answer
    x = 29,155.59

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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.