Home / 30,213.16-45,335.07-13,569.79

Finding the Fourth Proportional to 30,213.16, 45,335.07 and 13,569.79

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Solution

The fourth proportional to 30,213.16, 45,335.07 and 13,569.79 is: 20,361.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,213.16 : 45,335.07 = 13,569.79 : x
  2. Step 2: Convert to fraction form
    30,213.16/45,335.07 = 13,569.79/x
  3. Step 3: Cross multiply
    30,213.16x = 45,335.07 × 13,569.79
  4. Step 4: Simplify right side
    30,213.16x = 615,187,379.54
  5. Step 5: Solve for x
    x = 615,187,379.54/30,213.16
  6. Step 6: Final answer
    x = 20,361.57

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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.