Home / 21,540.65-29,694.93-14,260.54

Finding the Fourth Proportional to 21,540.65, 29,694.93 and 14,260.54

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Solution

The fourth proportional to 21,540.65, 29,694.93 and 14,260.54 is: 19,658.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,540.65 : 29,694.93 = 14,260.54 : x
  2. Step 2: Convert to fraction form
    21,540.65/29,694.93 = 14,260.54/x
  3. Step 3: Cross multiply
    21,540.65x = 29,694.93 × 14,260.54
  4. Step 4: Simplify right side
    21,540.65x = 423,465,737.06
  5. Step 5: Solve for x
    x = 423,465,737.06/21,540.65
  6. Step 6: Final answer
    x = 19,658.91

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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.