Home / 20,441.12-28,209.75-12,482.06

Finding the Fourth Proportional to 20,441.12, 28,209.75 and 12,482.06

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Solution

The fourth proportional to 20,441.12, 28,209.75 and 12,482.06 is: 17,225.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,441.12 : 28,209.75 = 12,482.06 : x
  2. Step 2: Convert to fraction form
    20,441.12/28,209.75 = 12,482.06/x
  3. Step 3: Cross multiply
    20,441.12x = 28,209.75 × 12,482.06
  4. Step 4: Simplify right side
    20,441.12x = 352,115,792.09
  5. Step 5: Solve for x
    x = 352,115,792.09/20,441.12
  6. Step 6: Final answer
    x = 17,225.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.