Home / 30,207.36-45,319.17-12,672.48

Finding the Fourth Proportional to 30,207.36, 45,319.17 and 12,672.48

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Solution

The fourth proportional to 30,207.36, 45,319.17 and 12,672.48 is: 19,012.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,207.36 : 45,319.17 = 12,672.48 : x
  2. Step 2: Convert to fraction form
    30,207.36/45,319.17 = 12,672.48/x
  3. Step 3: Cross multiply
    30,207.36x = 45,319.17 × 12,672.48
  4. Step 4: Simplify right side
    30,207.36x = 574,306,275.44
  5. Step 5: Solve for x
    x = 574,306,275.44/30,207.36
  6. Step 6: Final answer
    x = 19,012.13

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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.