Home / 43,146.75-64,626.65-20,913.62

Finding the Fourth Proportional to 43,146.75, 64,626.65 and 20,913.62

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Solution

The fourth proportional to 43,146.75, 64,626.65 and 20,913.62 is: 31,325.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,146.75 : 64,626.65 = 20,913.62 : x
  2. Step 2: Convert to fraction form
    43,146.75/64,626.65 = 20,913.62/x
  3. Step 3: Cross multiply
    43,146.75x = 64,626.65 × 20,913.62
  4. Step 4: Simplify right side
    43,146.75x = 1,351,576,772.27
  5. Step 5: Solve for x
    x = 1,351,576,772.27/43,146.75
  6. Step 6: Final answer
    x = 31,325.11

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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.