Home / 30,432.54-45,615.31-19,898.22

Finding the Fourth Proportional to 30,432.54, 45,615.31 and 19,898.22

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Solution

The fourth proportional to 30,432.54, 45,615.31 and 19,898.22 is: 29,825.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,432.54 : 45,615.31 = 19,898.22 : x
  2. Step 2: Convert to fraction form
    30,432.54/45,615.31 = 19,898.22/x
  3. Step 3: Cross multiply
    30,432.54x = 45,615.31 × 19,898.22
  4. Step 4: Simplify right side
    30,432.54x = 907,663,473.75
  5. Step 5: Solve for x
    x = 907,663,473.75/30,432.54
  6. Step 6: Final answer
    x = 29,825.43

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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.