Home / 21,415.15-32,122.73-6,624.20

Finding the Fourth Proportional to 21,415.15, 32,122.73 and 6,624.20

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Solution

The fourth proportional to 21,415.15, 32,122.73 and 6,624.20 is: 9,936.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,415.15 : 32,122.73 = 6,624.20 : x
  2. Step 2: Convert to fraction form
    21,415.15/32,122.73 = 6,624.20/x
  3. Step 3: Cross multiply
    21,415.15x = 32,122.73 × 6,624.20
  4. Step 4: Simplify right side
    21,415.15x = 212,787,266.98
  5. Step 5: Solve for x
    x = 212,787,266.98/21,415.15
  6. Step 6: Final answer
    x = 9,936.30

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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.