Home / 20,210.04-30,291.21-9,103.68

Finding the Fourth Proportional to 20,210.04, 30,291.21 and 9,103.68

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Solution

The fourth proportional to 20,210.04, 30,291.21 and 9,103.68 is: 13,644.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,210.04 : 30,291.21 = 9,103.68 : x
  2. Step 2: Convert to fraction form
    20,210.04/30,291.21 = 9,103.68/x
  3. Step 3: Cross multiply
    20,210.04x = 30,291.21 × 9,103.68
  4. Step 4: Simplify right side
    20,210.04x = 275,761,482.65
  5. Step 5: Solve for x
    x = 275,761,482.65/20,210.04
  6. Step 6: Final answer
    x = 13,644.78

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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.