Home / 25,535.79-38,303.70-6,815.90

Finding the Fourth Proportional to 25,535.79, 38,303.70 and 6,815.90

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Solution

The fourth proportional to 25,535.79, 38,303.70 and 6,815.90 is: 10,223.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,535.79 : 38,303.70 = 6,815.90 : x
  2. Step 2: Convert to fraction form
    25,535.79/38,303.70 = 6,815.90/x
  3. Step 3: Cross multiply
    25,535.79x = 38,303.70 × 6,815.90
  4. Step 4: Simplify right side
    25,535.79x = 261,074,284.59
  5. Step 5: Solve for x
    x = 261,074,284.59/25,535.79
  6. Step 6: Final answer
    x = 10,223.86

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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.