Home / 30,445.35-45,594.21-21,059.02

Finding the Fourth Proportional to 30,445.35, 45,594.21 and 21,059.02

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Solution

The fourth proportional to 30,445.35, 45,594.21 and 21,059.02 is: 31,537.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,445.35 : 45,594.21 = 21,059.02 : x
  2. Step 2: Convert to fraction form
    30,445.35/45,594.21 = 21,059.02/x
  3. Step 3: Cross multiply
    30,445.35x = 45,594.21 × 21,059.02
  4. Step 4: Simplify right side
    30,445.35x = 960,169,380.27
  5. Step 5: Solve for x
    x = 960,169,380.27/30,445.35
  6. Step 6: Final answer
    x = 31,537.47

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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.