Home / 20,007.05-30,010.59-5,215.95

Finding the Fourth Proportional to 20,007.05, 30,010.59 and 5,215.95

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Solution

The fourth proportional to 20,007.05, 30,010.59 and 5,215.95 is: 7,823.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,007.05 : 30,010.59 = 5,215.95 : x
  2. Step 2: Convert to fraction form
    20,007.05/30,010.59 = 5,215.95/x
  3. Step 3: Cross multiply
    20,007.05x = 30,010.59 × 5,215.95
  4. Step 4: Simplify right side
    20,007.05x = 156,533,736.91
  5. Step 5: Solve for x
    x = 156,533,736.91/20,007.05
  6. Step 6: Final answer
    x = 7,823.93

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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.