Home / 30,117.18-45,177.99-7,930.41

Finding the Fourth Proportional to 30,117.18, 45,177.99 and 7,930.41

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Solution

The fourth proportional to 30,117.18, 45,177.99 and 7,930.41 is: 11,896.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,117.18 : 45,177.99 = 7,930.41 : x
  2. Step 2: Convert to fraction form
    30,117.18/45,177.99 = 7,930.41/x
  3. Step 3: Cross multiply
    30,117.18x = 45,177.99 × 7,930.41
  4. Step 4: Simplify right side
    30,117.18x = 358,279,851.43
  5. Step 5: Solve for x
    x = 358,279,851.43/30,117.18
  6. Step 6: Final answer
    x = 11,896.19

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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.