Home / 30,253.38-45,380.07-12,735.51

Finding the Fourth Proportional to 30,253.38, 45,380.07 and 12,735.51

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Solution

The fourth proportional to 30,253.38, 45,380.07 and 12,735.51 is: 19,103.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,253.38 : 45,380.07 = 12,735.51 : x
  2. Step 2: Convert to fraction form
    30,253.38/45,380.07 = 12,735.51/x
  3. Step 3: Cross multiply
    30,253.38x = 45,380.07 × 12,735.51
  4. Step 4: Simplify right side
    30,253.38x = 577,938,335.29
  5. Step 5: Solve for x
    x = 577,938,335.29/30,253.38
  6. Step 6: Final answer
    x = 19,103.27

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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.