Home / 20,482.22-28,283.01-12,941.66

Finding the Fourth Proportional to 20,482.22, 28,283.01 and 12,941.66

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Solution

The fourth proportional to 20,482.22, 28,283.01 and 12,941.66 is: 17,870.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,482.22 : 28,283.01 = 12,941.66 : x
  2. Step 2: Convert to fraction form
    20,482.22/28,283.01 = 12,941.66/x
  3. Step 3: Cross multiply
    20,482.22x = 28,283.01 × 12,941.66
  4. Step 4: Simplify right side
    20,482.22x = 366,029,099.20
  5. Step 5: Solve for x
    x = 366,029,099.20/20,482.22
  6. Step 6: Final answer
    x = 17,870.58

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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.