Home / 20,287.67-30,385.33-14,019.28

Finding the Fourth Proportional to 20,287.67, 30,385.33 and 14,019.28

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Solution

The fourth proportional to 20,287.67, 30,385.33 and 14,019.28 is: 20,997.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,287.67 : 30,385.33 = 14,019.28 : x
  2. Step 2: Convert to fraction form
    20,287.67/30,385.33 = 14,019.28/x
  3. Step 3: Cross multiply
    20,287.67x = 30,385.33 × 14,019.28
  4. Step 4: Simplify right side
    20,287.67x = 425,980,338.15
  5. Step 5: Solve for x
    x = 425,980,338.15/20,287.67
  6. Step 6: Final answer
    x = 20,997.01

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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.