Home / 25,356.14-34,990.44-13,870.86

Finding the Fourth Proportional to 25,356.14, 34,990.44 and 13,870.86

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Solution

The fourth proportional to 25,356.14, 34,990.44 and 13,870.86 is: 19,141.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,356.14 : 34,990.44 = 13,870.86 : x
  2. Step 2: Convert to fraction form
    25,356.14/34,990.44 = 13,870.86/x
  3. Step 3: Cross multiply
    25,356.14x = 34,990.44 × 13,870.86
  4. Step 4: Simplify right side
    25,356.14x = 485,347,494.58
  5. Step 5: Solve for x
    x = 485,347,494.58/25,356.14
  6. Step 6: Final answer
    x = 19,141.23

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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.