Home / 27,848.23-38,435.38-21,122.60

Finding the Fourth Proportional to 27,848.23, 38,435.38 and 21,122.60

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Solution

The fourth proportional to 27,848.23, 38,435.38 and 21,122.60 is: 29,152.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,848.23 : 38,435.38 = 21,122.60 : x
  2. Step 2: Convert to fraction form
    27,848.23/38,435.38 = 21,122.60/x
  3. Step 3: Cross multiply
    27,848.23x = 38,435.38 × 21,122.60
  4. Step 4: Simplify right side
    27,848.23x = 811,854,912.60
  5. Step 5: Solve for x
    x = 811,854,912.60/27,848.23
  6. Step 6: Final answer
    x = 29,152.84

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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.