Home / 30,247.11-45,370.62-12,487.77

Finding the Fourth Proportional to 30,247.11, 45,370.62 and 12,487.77

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Solution

The fourth proportional to 30,247.11, 45,370.62 and 12,487.77 is: 18,731.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,247.11 : 45,370.62 = 12,487.77 : x
  2. Step 2: Convert to fraction form
    30,247.11/45,370.62 = 12,487.77/x
  3. Step 3: Cross multiply
    30,247.11x = 45,370.62 × 12,487.77
  4. Step 4: Simplify right side
    30,247.11x = 566,577,867.32
  5. Step 5: Solve for x
    x = 566,577,867.32/30,247.11
  6. Step 6: Final answer
    x = 18,731.64

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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.