Home / 20,042.16-30,030.40-13,021.92

Finding the Fourth Proportional to 20,042.16, 30,030.40 and 13,021.92

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Solution

The fourth proportional to 20,042.16, 30,030.40 and 13,021.92 is: 19,511.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,042.16 : 30,030.40 = 13,021.92 : x
  2. Step 2: Convert to fraction form
    20,042.16/30,030.40 = 13,021.92/x
  3. Step 3: Cross multiply
    20,042.16x = 30,030.40 × 13,021.92
  4. Step 4: Simplify right side
    20,042.16x = 391,053,466.37
  5. Step 5: Solve for x
    x = 391,053,466.37/20,042.16
  6. Step 6: Final answer
    x = 19,511.54

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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.