Home / 21,410.40-32,116.48-6,618.96

Finding the Fourth Proportional to 21,410.40, 32,116.48 and 6,618.96

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Solution

The fourth proportional to 21,410.40, 32,116.48 and 6,618.96 is: 9,928.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,410.40 : 32,116.48 = 6,618.96 : x
  2. Step 2: Convert to fraction form
    21,410.40/32,116.48 = 6,618.96/x
  3. Step 3: Cross multiply
    21,410.40x = 32,116.48 × 6,618.96
  4. Step 4: Simplify right side
    21,410.40x = 212,577,696.46
  5. Step 5: Solve for x
    x = 212,577,696.46/21,410.40
  6. Step 6: Final answer
    x = 9,928.71

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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.