Home / 30,308.40-45,473.92-13,663.44

Finding the Fourth Proportional to 30,308.40, 45,473.92 and 13,663.44

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Solution

The fourth proportional to 30,308.40, 45,473.92 and 13,663.44 is: 20,500.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,308.40 : 45,473.92 = 13,663.44 : x
  2. Step 2: Convert to fraction form
    30,308.40/45,473.92 = 13,663.44/x
  3. Step 3: Cross multiply
    30,308.40x = 45,473.92 × 13,663.44
  4. Step 4: Simplify right side
    30,308.40x = 621,330,177.48
  5. Step 5: Solve for x
    x = 621,330,177.48/30,308.40
  6. Step 6: Final answer
    x = 20,500.26

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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.