Home / 30,245.13-45,371.34-12,712.68

Finding the Fourth Proportional to 30,245.13, 45,371.34 and 12,712.68

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Solution

The fourth proportional to 30,245.13, 45,371.34 and 12,712.68 is: 19,070.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,245.13 : 45,371.34 = 12,712.68 : x
  2. Step 2: Convert to fraction form
    30,245.13/45,371.34 = 12,712.68/x
  3. Step 3: Cross multiply
    30,245.13x = 45,371.34 × 12,712.68
  4. Step 4: Simplify right side
    30,245.13x = 576,791,326.59
  5. Step 5: Solve for x
    x = 576,791,326.59/30,245.13
  6. Step 6: Final answer
    x = 19,070.55

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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.