Home / 30,331.26-45,459.83-13,686.98

Finding the Fourth Proportional to 30,331.26, 45,459.83 and 13,686.98

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Solution

The fourth proportional to 30,331.26, 45,459.83 and 13,686.98 is: 20,513.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,331.26 : 45,459.83 = 13,686.98 : x
  2. Step 2: Convert to fraction form
    30,331.26/45,459.83 = 13,686.98/x
  3. Step 3: Cross multiply
    30,331.26x = 45,459.83 × 13,686.98
  4. Step 4: Simplify right side
    30,331.26x = 622,207,590.93
  5. Step 5: Solve for x
    x = 622,207,590.93/30,331.26
  6. Step 6: Final answer
    x = 20,513.74

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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.