Home / 25,870.87-38,800.16-7,150.51

Finding the Fourth Proportional to 25,870.87, 38,800.16 and 7,150.51

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Solution

The fourth proportional to 25,870.87, 38,800.16 and 7,150.51 is: 10,724.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,870.87 : 38,800.16 = 7,150.51 : x
  2. Step 2: Convert to fraction form
    25,870.87/38,800.16 = 7,150.51/x
  3. Step 3: Cross multiply
    25,870.87x = 38,800.16 × 7,150.51
  4. Step 4: Simplify right side
    25,870.87x = 277,440,932.08
  5. Step 5: Solve for x
    x = 277,440,932.08/25,870.87
  6. Step 6: Final answer
    x = 10,724.07

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.