Home / 21,411.55-32,117.33-6,620.14

Finding the Fourth Proportional to 21,411.55, 32,117.33 and 6,620.14

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Solution

The fourth proportional to 21,411.55, 32,117.33 and 6,620.14 is: 9,930.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,411.55 : 32,117.33 = 6,620.14 : x
  2. Step 2: Convert to fraction form
    21,411.55/32,117.33 = 6,620.14/x
  3. Step 3: Cross multiply
    21,411.55x = 32,117.33 × 6,620.14
  4. Step 4: Simplify right side
    21,411.55x = 212,621,277.72
  5. Step 5: Solve for x
    x = 212,621,277.72/21,411.55
  6. Step 6: Final answer
    x = 9,930.21

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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.