Home / 20,898.60-31,534.07-20,088.52

Finding the Fourth Proportional to 20,898.60, 31,534.07 and 20,088.52

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Solution

The fourth proportional to 20,898.60, 31,534.07 and 20,088.52 is: 30,311.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,898.60 : 31,534.07 = 20,088.52 : x
  2. Step 2: Convert to fraction form
    20,898.60/31,534.07 = 20,088.52/x
  3. Step 3: Cross multiply
    20,898.60x = 31,534.07 × 20,088.52
  4. Step 4: Simplify right side
    20,898.60x = 633,472,795.88
  5. Step 5: Solve for x
    x = 633,472,795.88/20,898.60
  6. Step 6: Final answer
    x = 30,311.73

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.