Home / 20,406.35-30,616.14-10,010.81

Finding the Fourth Proportional to 20,406.35, 30,616.14 and 10,010.81

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Solution

The fourth proportional to 20,406.35, 30,616.14 and 10,010.81 is: 15,019.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,406.35 : 30,616.14 = 10,010.81 : x
  2. Step 2: Convert to fraction form
    20,406.35/30,616.14 = 10,010.81/x
  3. Step 3: Cross multiply
    20,406.35x = 30,616.14 × 10,010.81
  4. Step 4: Simplify right side
    20,406.35x = 306,492,437.01
  5. Step 5: Solve for x
    x = 306,492,437.01/20,406.35
  6. Step 6: Final answer
    x = 15,019.46

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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.