Home / 30,289.26-45,414.45-19,888.86

Finding the Fourth Proportional to 30,289.26, 45,414.45 and 19,888.86

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Solution

The fourth proportional to 30,289.26, 45,414.45 and 19,888.86 is: 29,820.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,289.26 : 45,414.45 = 19,888.86 : x
  2. Step 2: Convert to fraction form
    30,289.26/45,414.45 = 19,888.86/x
  3. Step 3: Cross multiply
    30,289.26x = 45,414.45 × 19,888.86
  4. Step 4: Simplify right side
    30,289.26x = 903,241,638.03
  5. Step 5: Solve for x
    x = 903,241,638.03/30,289.26
  6. Step 6: Final answer
    x = 29,820.53

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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.