Home / 25,358.70-38,043.45-7,830.30

Finding the Fourth Proportional to 25,358.70, 38,043.45 and 7,830.30

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Solution

The fourth proportional to 25,358.70, 38,043.45 and 7,830.30 is: 11,747.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,358.70 : 38,043.45 = 7,830.30 : x
  2. Step 2: Convert to fraction form
    25,358.70/38,043.45 = 7,830.30/x
  3. Step 3: Cross multiply
    25,358.70x = 38,043.45 × 7,830.30
  4. Step 4: Simplify right side
    25,358.70x = 297,891,626.54
  5. Step 5: Solve for x
    x = 297,891,626.54/25,358.70
  6. Step 6: Final answer
    x = 11,747.12

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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.