Home / 30,038.55-45,057.31-12,265.29

Finding the Fourth Proportional to 30,038.55, 45,057.31 and 12,265.29

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Solution

The fourth proportional to 30,038.55, 45,057.31 and 12,265.29 is: 18,397.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,038.55 : 45,057.31 = 12,265.29 : x
  2. Step 2: Convert to fraction form
    30,038.55/45,057.31 = 12,265.29/x
  3. Step 3: Cross multiply
    30,038.55x = 45,057.31 × 12,265.29
  4. Step 4: Simplify right side
    30,038.55x = 552,641,012.10
  5. Step 5: Solve for x
    x = 552,641,012.10/30,038.55
  6. Step 6: Final answer
    x = 18,397.73

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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.