Home / 20,302.19-30,462.38-12,904.73

Finding the Fourth Proportional to 20,302.19, 30,462.38 and 12,904.73

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Solution

The fourth proportional to 20,302.19, 30,462.38 and 12,904.73 is: 19,362.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,302.19 : 30,462.38 = 12,904.73 : x
  2. Step 2: Convert to fraction form
    20,302.19/30,462.38 = 12,904.73/x
  3. Step 3: Cross multiply
    20,302.19x = 30,462.38 × 12,904.73
  4. Step 4: Simplify right side
    20,302.19x = 393,108,572.22
  5. Step 5: Solve for x
    x = 393,108,572.22/20,302.19
  6. Step 6: Final answer
    x = 19,362.87

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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.