Home / 20,065.11-30,097.53-15,686.25

Finding the Fourth Proportional to 20,065.11, 30,097.53 and 15,686.25

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Solution

The fourth proportional to 20,065.11, 30,097.53 and 15,686.25 is: 23,529.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,065.11 : 30,097.53 = 15,686.25 : x
  2. Step 2: Convert to fraction form
    20,065.11/30,097.53 = 15,686.25/x
  3. Step 3: Cross multiply
    20,065.11x = 30,097.53 × 15,686.25
  4. Step 4: Simplify right side
    20,065.11x = 472,117,379.96
  5. Step 5: Solve for x
    x = 472,117,379.96/20,065.11
  6. Step 6: Final answer
    x = 23,529.27

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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.