Home / 30,117.43-45,178.37-7,930.66

Finding the Fourth Proportional to 30,117.43, 45,178.37 and 7,930.66

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Solution

The fourth proportional to 30,117.43, 45,178.37 and 7,930.66 is: 11,896.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,117.43 : 45,178.37 = 7,930.66 : x
  2. Step 2: Convert to fraction form
    30,117.43/45,178.37 = 7,930.66/x
  3. Step 3: Cross multiply
    30,117.43x = 45,178.37 × 7,930.66
  4. Step 4: Simplify right side
    30,117.43x = 358,294,122.41
  5. Step 5: Solve for x
    x = 358,294,122.41/30,117.43
  6. Step 6: Final answer
    x = 11,896.57

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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.