Home / 20,833.31-31,252.40-7,320.34

Finding the Fourth Proportional to 20,833.31, 31,252.40 and 7,320.34

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Solution

The fourth proportional to 20,833.31, 31,252.40 and 7,320.34 is: 10,981.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,833.31 : 31,252.40 = 7,320.34 : x
  2. Step 2: Convert to fraction form
    20,833.31/31,252.40 = 7,320.34/x
  3. Step 3: Cross multiply
    20,833.31x = 31,252.40 × 7,320.34
  4. Step 4: Simplify right side
    20,833.31x = 228,778,037.55
  5. Step 5: Solve for x
    x = 228,778,037.55/20,833.31
  6. Step 6: Final answer
    x = 10,981.36

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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.