Home / 26,611.68-39,917.28-6,621.20

Finding the Fourth Proportional to 26,611.68, 39,917.28 and 6,621.20

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Solution

The fourth proportional to 26,611.68, 39,917.28 and 6,621.20 is: 9,931.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,611.68 : 39,917.28 = 6,621.20 : x
  2. Step 2: Convert to fraction form
    26,611.68/39,917.28 = 6,621.20/x
  3. Step 3: Cross multiply
    26,611.68x = 39,917.28 × 6,621.20
  4. Step 4: Simplify right side
    26,611.68x = 264,300,294.34
  5. Step 5: Solve for x
    x = 264,300,294.34/26,611.68
  6. Step 6: Final answer
    x = 9,931.74

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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.