Home / 20,397.69-30,590.46-7,247.07

Finding the Fourth Proportional to 20,397.69, 30,590.46 and 7,247.07

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Solution

The fourth proportional to 20,397.69, 30,590.46 and 7,247.07 is: 10,868.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,397.69 : 30,590.46 = 7,247.07 : x
  2. Step 2: Convert to fraction form
    20,397.69/30,590.46 = 7,247.07/x
  3. Step 3: Cross multiply
    20,397.69x = 30,590.46 × 7,247.07
  4. Step 4: Simplify right side
    20,397.69x = 221,691,204.95
  5. Step 5: Solve for x
    x = 221,691,204.95/20,397.69
  6. Step 6: Final answer
    x = 10,868.45

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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.