Home / 20,730.60-31,092.30-7,576.20

Finding the Fourth Proportional to 20,730.60, 31,092.30 and 7,576.20

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Solution

The fourth proportional to 20,730.60, 31,092.30 and 7,576.20 is: 11,362.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,730.60 : 31,092.30 = 7,576.20 : x
  2. Step 2: Convert to fraction form
    20,730.60/31,092.30 = 7,576.20/x
  3. Step 3: Cross multiply
    20,730.60x = 31,092.30 × 7,576.20
  4. Step 4: Simplify right side
    20,730.60x = 235,561,483.26
  5. Step 5: Solve for x
    x = 235,561,483.26/20,730.60
  6. Step 6: Final answer
    x = 11,362.98

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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.