Home / 30,125.43-45,190.37-7,938.66

Finding the Fourth Proportional to 30,125.43, 45,190.37 and 7,938.66

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Solution

The fourth proportional to 30,125.43, 45,190.37 and 7,938.66 is: 11,908.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,125.43 : 45,190.37 = 7,938.66 : x
  2. Step 2: Convert to fraction form
    30,125.43/45,190.37 = 7,938.66/x
  3. Step 3: Cross multiply
    30,125.43x = 45,190.37 × 7,938.66
  4. Step 4: Simplify right side
    30,125.43x = 358,750,943.01
  5. Step 5: Solve for x
    x = 358,750,943.01/30,125.43
  6. Step 6: Final answer
    x = 11,908.58

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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.