Home / 20,107.22-30,130.06-10,748.57

Finding the Fourth Proportional to 20,107.22, 30,130.06 and 10,748.57

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Solution

The fourth proportional to 20,107.22, 30,130.06 and 10,748.57 is: 16,106.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,107.22 : 30,130.06 = 10,748.57 : x
  2. Step 2: Convert to fraction form
    20,107.22/30,130.06 = 10,748.57/x
  3. Step 3: Cross multiply
    20,107.22x = 30,130.06 × 10,748.57
  4. Step 4: Simplify right side
    20,107.22x = 323,854,901.65
  5. Step 5: Solve for x
    x = 323,854,901.65/20,107.22
  6. Step 6: Final answer
    x = 16,106.40

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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.