Home / 20,344.40-30,525.81-12,040.62

Finding the Fourth Proportional to 20,344.40, 30,525.81 and 12,040.62

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Solution

The fourth proportional to 20,344.40, 30,525.81 and 12,040.62 is: 18,066.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,344.40 : 30,525.81 = 12,040.62 : x
  2. Step 2: Convert to fraction form
    20,344.40/30,525.81 = 12,040.62/x
  3. Step 3: Cross multiply
    20,344.40x = 30,525.81 × 12,040.62
  4. Step 4: Simplify right side
    20,344.40x = 367,549,678.40
  5. Step 5: Solve for x
    x = 367,549,678.40/20,344.40
  6. Step 6: Final answer
    x = 18,066.38

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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.