Home / 20,099.69-30,139.95-9,006.47

Finding the Fourth Proportional to 20,099.69, 30,139.95 and 9,006.47

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Solution

The fourth proportional to 20,099.69, 30,139.95 and 9,006.47 is: 13,505.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,099.69 : 30,139.95 = 9,006.47 : x
  2. Step 2: Convert to fraction form
    20,099.69/30,139.95 = 9,006.47/x
  3. Step 3: Cross multiply
    20,099.69x = 30,139.95 × 9,006.47
  4. Step 4: Simplify right side
    20,099.69x = 271,454,555.48
  5. Step 5: Solve for x
    x = 271,454,555.48/20,099.69
  6. Step 6: Final answer
    x = 13,505.41

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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.