Home / 39,431.34-54,414.45-21,526.29

Finding the Fourth Proportional to 39,431.34, 54,414.45 and 21,526.29

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Solution

The fourth proportional to 39,431.34, 54,414.45 and 21,526.29 is: 29,705.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,431.34 : 54,414.45 = 21,526.29 : x
  2. Step 2: Convert to fraction form
    39,431.34/54,414.45 = 21,526.29/x
  3. Step 3: Cross multiply
    39,431.34x = 54,414.45 × 21,526.29
  4. Step 4: Simplify right side
    39,431.34x = 1,171,341,230.89
  5. Step 5: Solve for x
    x = 1,171,341,230.89/39,431.34
  6. Step 6: Final answer
    x = 29,705.84

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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.