Home / 39,229.98-54,137.16-21,325.02

Finding the Fourth Proportional to 39,229.98, 54,137.16 and 21,325.02

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Solution

The fourth proportional to 39,229.98, 54,137.16 and 21,325.02 is: 29,428.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,229.98 : 54,137.16 = 21,325.02 : x
  2. Step 2: Convert to fraction form
    39,229.98/54,137.16 = 21,325.02/x
  3. Step 3: Cross multiply
    39,229.98x = 54,137.16 × 21,325.02
  4. Step 4: Simplify right side
    39,229.98x = 1,154,476,019.74
  5. Step 5: Solve for x
    x = 1,154,476,019.74/39,229.98
  6. Step 6: Final answer
    x = 29,428.41

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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.