Home / 25,114.34-37,678.46-20,422.76

Finding the Fourth Proportional to 25,114.34, 37,678.46 and 20,422.76

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Solution

The fourth proportional to 25,114.34, 37,678.46 and 20,422.76 is: 30,639.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,114.34 : 37,678.46 = 20,422.76 : x
  2. Step 2: Convert to fraction form
    25,114.34/37,678.46 = 20,422.76/x
  3. Step 3: Cross multiply
    25,114.34x = 37,678.46 × 20,422.76
  4. Step 4: Simplify right side
    25,114.34x = 769,497,855.24
  5. Step 5: Solve for x
    x = 769,497,855.24/25,114.34
  6. Step 6: Final answer
    x = 30,639.79

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1.5x scale

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.