Home / 30,134.32-45,201.12-14,540.92

Finding the Fourth Proportional to 30,134.32, 45,201.12 and 14,540.92

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Solution

The fourth proportional to 30,134.32, 45,201.12 and 14,540.92 is: 21,811.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,134.32 : 45,201.12 = 14,540.92 : x
  2. Step 2: Convert to fraction form
    30,134.32/45,201.12 = 14,540.92/x
  3. Step 3: Cross multiply
    30,134.32x = 45,201.12 × 14,540.92
  4. Step 4: Simplify right side
    30,134.32x = 657,265,869.83
  5. Step 5: Solve for x
    x = 657,265,869.83/30,134.32
  6. Step 6: Final answer
    x = 21,811.21

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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.