Home / 30,331.40-45,497.10-19,833.80

Finding the Fourth Proportional to 30,331.40, 45,497.10 and 19,833.80

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Solution

The fourth proportional to 30,331.40, 45,497.10 and 19,833.80 is: 29,750.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,331.40 : 45,497.10 = 19,833.80 : x
  2. Step 2: Convert to fraction form
    30,331.40/45,497.10 = 19,833.80/x
  3. Step 3: Cross multiply
    30,331.40x = 45,497.10 × 19,833.80
  4. Step 4: Simplify right side
    30,331.40x = 902,380,381.98
  5. Step 5: Solve for x
    x = 902,380,381.98/30,331.40
  6. Step 6: Final answer
    x = 29,750.70

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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.