Home / 25,320.93-34,942.76-13,990.42

Finding the Fourth Proportional to 25,320.93, 34,942.76 and 13,990.42

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Solution

The fourth proportional to 25,320.93, 34,942.76 and 13,990.42 is: 19,306.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,320.93 : 34,942.76 = 13,990.42 : x
  2. Step 2: Convert to fraction form
    25,320.93/34,942.76 = 13,990.42/x
  3. Step 3: Cross multiply
    25,320.93x = 34,942.76 × 13,990.42
  4. Step 4: Simplify right side
    25,320.93x = 488,863,888.36
  5. Step 5: Solve for x
    x = 488,863,888.36/25,320.93
  6. Step 6: Final answer
    x = 19,306.71

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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.