Home / 30,331.80-45,497.70-13,710.60

Finding the Fourth Proportional to 30,331.80, 45,497.70 and 13,710.60

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Solution

The fourth proportional to 30,331.80, 45,497.70 and 13,710.60 is: 20,565.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,331.80 : 45,497.70 = 13,710.60 : x
  2. Step 2: Convert to fraction form
    30,331.80/45,497.70 = 13,710.60/x
  3. Step 3: Cross multiply
    30,331.80x = 45,497.70 × 13,710.60
  4. Step 4: Simplify right side
    30,331.80x = 623,800,765.62
  5. Step 5: Solve for x
    x = 623,800,765.62/30,331.80
  6. Step 6: Final answer
    x = 20,565.90

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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.