Home / 20,977.68-31,461.48-6,182.60

Finding the Fourth Proportional to 20,977.68, 31,461.48 and 6,182.60

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Solution

The fourth proportional to 20,977.68, 31,461.48 and 6,182.60 is: 9,272.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,977.68 : 31,461.48 = 6,182.60 : x
  2. Step 2: Convert to fraction form
    20,977.68/31,461.48 = 6,182.60/x
  3. Step 3: Cross multiply
    20,977.68x = 31,461.48 × 6,182.60
  4. Step 4: Simplify right side
    20,977.68x = 194,513,746.25
  5. Step 5: Solve for x
    x = 194,513,746.25/20,977.68
  6. Step 6: Final answer
    x = 9,272.41

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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.