Home / 20,406.10-30,615.77-10,010.56

Finding the Fourth Proportional to 20,406.10, 30,615.77 and 10,010.56

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Solution

The fourth proportional to 20,406.10, 30,615.77 and 10,010.56 is: 15,019.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,406.10 : 30,615.77 = 10,010.56 : x
  2. Step 2: Convert to fraction form
    20,406.10/30,615.77 = 10,010.56/x
  3. Step 3: Cross multiply
    20,406.10x = 30,615.77 × 10,010.56
  4. Step 4: Simplify right side
    20,406.10x = 306,480,952.48
  5. Step 5: Solve for x
    x = 306,480,952.48/20,406.10
  6. Step 6: Final answer
    x = 15,019.09

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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.