Home / 20,073.92-29,988.77-12,996.27

Finding the Fourth Proportional to 20,073.92, 29,988.77 and 12,996.27

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Solution

The fourth proportional to 20,073.92, 29,988.77 and 12,996.27 is: 19,415.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,073.92 : 29,988.77 = 12,996.27 : x
  2. Step 2: Convert to fraction form
    20,073.92/29,988.77 = 12,996.27/x
  3. Step 3: Cross multiply
    20,073.92x = 29,988.77 × 12,996.27
  4. Step 4: Simplify right side
    20,073.92x = 389,742,086.91
  5. Step 5: Solve for x
    x = 389,742,086.91/20,073.92
  6. Step 6: Final answer
    x = 19,415.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.