Home / 39,341.30-54,290.30-21,436.43

Finding the Fourth Proportional to 39,341.30, 54,290.30 and 21,436.43

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Solution

The fourth proportional to 39,341.30, 54,290.30 and 21,436.43 is: 29,581.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,341.30 : 54,290.30 = 21,436.43 : x
  2. Step 2: Convert to fraction form
    39,341.30/54,290.30 = 21,436.43/x
  3. Step 3: Cross multiply
    39,341.30x = 54,290.30 × 21,436.43
  4. Step 4: Simplify right side
    39,341.30x = 1,163,789,837.00
  5. Step 5: Solve for x
    x = 1,163,789,837.00/39,341.30
  6. Step 6: Final answer
    x = 29,581.89

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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.