Home / 39,757.28-54,865.74-21,852.23

Finding the Fourth Proportional to 39,757.28, 54,865.74 and 21,852.23

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Solution

The fourth proportional to 39,757.28, 54,865.74 and 21,852.23 is: 30,156.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,757.28 : 54,865.74 = 21,852.23 : x
  2. Step 2: Convert to fraction form
    39,757.28/54,865.74 = 21,852.23/x
  3. Step 3: Cross multiply
    39,757.28x = 54,865.74 × 21,852.23
  4. Step 4: Simplify right side
    39,757.28x = 1,198,938,495.27
  5. Step 5: Solve for x
    x = 1,198,938,495.27/39,757.28
  6. Step 6: Final answer
    x = 30,156.46

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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.