Home / 20,010.59-30,015.86-5,219.46

Finding the Fourth Proportional to 20,010.59, 30,015.86 and 5,219.46

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Solution

The fourth proportional to 20,010.59, 30,015.86 and 5,219.46 is: 7,829.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,010.59 : 30,015.86 = 5,219.46 : x
  2. Step 2: Convert to fraction form
    20,010.59/30,015.86 = 5,219.46/x
  3. Step 3: Cross multiply
    20,010.59x = 30,015.86 × 5,219.46
  4. Step 4: Simplify right side
    20,010.59x = 156,666,593.68
  5. Step 5: Solve for x
    x = 156,666,593.68/20,010.59
  6. Step 6: Final answer
    x = 7,829.19

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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.