Home / 30,160.09-45,255.12-13,531.87

Finding the Fourth Proportional to 30,160.09, 45,255.12 and 13,531.87

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Solution

The fourth proportional to 30,160.09, 45,255.12 and 13,531.87 is: 20,304.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,160.09 : 45,255.12 = 13,531.87 : x
  2. Step 2: Convert to fraction form
    30,160.09/45,255.12 = 13,531.87/x
  3. Step 3: Cross multiply
    30,160.09x = 45,255.12 × 13,531.87
  4. Step 4: Simplify right side
    30,160.09x = 612,386,400.67
  5. Step 5: Solve for x
    x = 612,386,400.67/30,160.09
  6. Step 6: Final answer
    x = 20,304.53

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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.