Home / 43,280.40-64,922.22-12,114.84

Finding the Fourth Proportional to 43,280.40, 64,922.22 and 12,114.84

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Solution

The fourth proportional to 43,280.40, 64,922.22 and 12,114.84 is: 18,172.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,280.40 : 64,922.22 = 12,114.84 : x
  2. Step 2: Convert to fraction form
    43,280.40/64,922.22 = 12,114.84/x
  3. Step 3: Cross multiply
    43,280.40x = 64,922.22 × 12,114.84
  4. Step 4: Simplify right side
    43,280.40x = 786,522,307.74
  5. Step 5: Solve for x
    x = 786,522,307.74/43,280.40
  6. Step 6: Final answer
    x = 18,172.71

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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.