Home / 20,006.19-30,006.86-8,317.89

Finding the Fourth Proportional to 20,006.19, 30,006.86 and 8,317.89

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Solution

The fourth proportional to 20,006.19, 30,006.86 and 8,317.89 is: 12,475.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,006.19 : 30,006.86 = 8,317.89 : x
  2. Step 2: Convert to fraction form
    20,006.19/30,006.86 = 8,317.89/x
  3. Step 3: Cross multiply
    20,006.19x = 30,006.86 × 8,317.89
  4. Step 4: Simplify right side
    20,006.19x = 249,593,719.14
  5. Step 5: Solve for x
    x = 249,593,719.14/20,006.19
  6. Step 6: Final answer
    x = 12,475.82

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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.