Home / 30,162.20-45,264.06-13,540.84

Finding the Fourth Proportional to 30,162.20, 45,264.06 and 13,540.84

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Solution

The fourth proportional to 30,162.20, 45,264.06 and 13,540.84 is: 20,320.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,162.20 : 45,264.06 = 13,540.84 : x
  2. Step 2: Convert to fraction form
    30,162.20/45,264.06 = 13,540.84/x
  3. Step 3: Cross multiply
    30,162.20x = 45,264.06 × 13,540.84
  4. Step 4: Simplify right side
    30,162.20x = 612,913,394.21
  5. Step 5: Solve for x
    x = 612,913,394.21/30,162.20
  6. Step 6: Final answer
    x = 20,320.58

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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.