Home / 30,078.16-45,134.22-11,370.88

Finding the Fourth Proportional to 30,078.16, 45,134.22 and 11,370.88

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Solution

The fourth proportional to 30,078.16, 45,134.22 and 11,370.88 is: 17,062.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,078.16 : 45,134.22 = 11,370.88 : x
  2. Step 2: Convert to fraction form
    30,078.16/45,134.22 = 11,370.88/x
  3. Step 3: Cross multiply
    30,078.16x = 45,134.22 × 11,370.88
  4. Step 4: Simplify right side
    30,078.16x = 513,215,799.51
  5. Step 5: Solve for x
    x = 513,215,799.51/30,078.16
  6. Step 6: Final answer
    x = 17,062.74

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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.