Home / 20,101.10-30,148.86-14,078.94

Finding the Fourth Proportional to 20,101.10, 30,148.86 and 14,078.94

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Solution

The fourth proportional to 20,101.10, 30,148.86 and 14,078.94 is: 21,116.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,101.10 : 30,148.86 = 14,078.94 : x
  2. Step 2: Convert to fraction form
    20,101.10/30,148.86 = 14,078.94/x
  3. Step 3: Cross multiply
    20,101.10x = 30,148.86 × 14,078.94
  4. Step 4: Simplify right side
    20,101.10x = 424,463,991.01
  5. Step 5: Solve for x
    x = 424,463,991.01/20,101.10
  6. Step 6: Final answer
    x = 21,116.46

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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.