Home / 20,256.48-30,384.54-7,105.77

Finding the Fourth Proportional to 20,256.48, 30,384.54 and 7,105.77

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Solution

The fourth proportional to 20,256.48, 30,384.54 and 7,105.77 is: 10,658.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,256.48 : 30,384.54 = 7,105.77 : x
  2. Step 2: Convert to fraction form
    20,256.48/30,384.54 = 7,105.77/x
  3. Step 3: Cross multiply
    20,256.48x = 30,384.54 × 7,105.77
  4. Step 4: Simplify right side
    20,256.48x = 215,905,552.80
  5. Step 5: Solve for x
    x = 215,905,552.80/20,256.48
  6. Step 6: Final answer
    x = 10,658.59

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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.