Home / 21,410.46-32,118.77-6,620.53

Finding the Fourth Proportional to 21,410.46, 32,118.77 and 6,620.53

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Solution

The fourth proportional to 21,410.46, 32,118.77 and 6,620.53 is: 9,931.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,410.46 : 32,118.77 = 6,620.53 : x
  2. Step 2: Convert to fraction form
    21,410.46/32,118.77 = 6,620.53/x
  3. Step 3: Cross multiply
    21,410.46x = 32,118.77 × 6,620.53
  4. Step 4: Simplify right side
    21,410.46x = 212,643,280.35
  5. Step 5: Solve for x
    x = 212,643,280.35/21,410.46
  6. Step 6: Final answer
    x = 9,931.75

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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.