Home / 39,794.31-54,915.25-21,888.92

Finding the Fourth Proportional to 39,794.31, 54,915.25 and 21,888.92

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Solution

The fourth proportional to 39,794.31, 54,915.25 and 21,888.92 is: 30,206.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,794.31 : 54,915.25 = 21,888.92 : x
  2. Step 2: Convert to fraction form
    39,794.31/54,915.25 = 21,888.92/x
  3. Step 3: Cross multiply
    39,794.31x = 54,915.25 × 21,888.92
  4. Step 4: Simplify right side
    39,794.31x = 1,202,035,130.01
  5. Step 5: Solve for x
    x = 1,202,035,130.01/39,794.31
  6. Step 6: Final answer
    x = 30,206.21

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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.