Home / 21,417.75-32,129.73-6,627.81

Finding the Fourth Proportional to 21,417.75, 32,129.73 and 6,627.81

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Solution

The fourth proportional to 21,417.75, 32,129.73 and 6,627.81 is: 9,942.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,417.75 : 32,129.73 = 6,627.81 : x
  2. Step 2: Convert to fraction form
    21,417.75/32,129.73 = 6,627.81/x
  3. Step 3: Cross multiply
    21,417.75x = 32,129.73 × 6,627.81
  4. Step 4: Simplify right side
    21,417.75x = 212,949,745.79
  5. Step 5: Solve for x
    x = 212,949,745.79/21,417.75
  6. Step 6: Final answer
    x = 9,942.68

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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.