Home / 20,107.10-30,157.86-14,084.94

Finding the Fourth Proportional to 20,107.10, 30,157.86 and 14,084.94

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Solution

The fourth proportional to 20,107.10, 30,157.86 and 14,084.94 is: 21,125.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,107.10 : 30,157.86 = 14,084.94 : x
  2. Step 2: Convert to fraction form
    20,107.10/30,157.86 = 14,084.94/x
  3. Step 3: Cross multiply
    20,107.10x = 30,157.86 × 14,084.94
  4. Step 4: Simplify right side
    20,107.10x = 424,771,648.63
  5. Step 5: Solve for x
    x = 424,771,648.63/20,107.10
  6. Step 6: Final answer
    x = 21,125.46

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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.