Home / 30,224.43-45,327.53-12,690.36

Finding the Fourth Proportional to 30,224.43, 45,327.53 and 12,690.36

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Solution

The fourth proportional to 30,224.43, 45,327.53 and 12,690.36 is: 19,031.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,224.43 : 45,327.53 = 12,690.36 : x
  2. Step 2: Convert to fraction form
    30,224.43/45,327.53 = 12,690.36/x
  3. Step 3: Cross multiply
    30,224.43x = 45,327.53 × 12,690.36
  4. Step 4: Simplify right side
    30,224.43x = 575,222,673.61
  5. Step 5: Solve for x
    x = 575,222,673.61/30,224.43
  6. Step 6: Final answer
    x = 19,031.71

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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.