Home / 39,335.28-54,283.98-21,431.04

Finding the Fourth Proportional to 39,335.28, 54,283.98 and 21,431.04

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Solution

The fourth proportional to 39,335.28, 54,283.98 and 21,431.04 is: 29,575.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,335.28 : 54,283.98 = 21,431.04 : x
  2. Step 2: Convert to fraction form
    39,335.28/54,283.98 = 21,431.04/x
  3. Step 3: Cross multiply
    39,335.28x = 54,283.98 × 21,431.04
  4. Step 4: Simplify right side
    39,335.28x = 1,163,362,146.74
  5. Step 5: Solve for x
    x = 1,163,362,146.74/39,335.28
  6. Step 6: Final answer
    x = 29,575.54

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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.