Home / 30,307.12-41,823.78-16,879.54

Finding the Fourth Proportional to 30,307.12, 41,823.78 and 16,879.54

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Solution

The fourth proportional to 30,307.12, 41,823.78 and 16,879.54 is: 23,293.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,307.12 : 41,823.78 = 16,879.54 : x
  2. Step 2: Convert to fraction form
    30,307.12/41,823.78 = 16,879.54/x
  3. Step 3: Cross multiply
    30,307.12x = 41,823.78 × 16,879.54
  4. Step 4: Simplify right side
    30,307.12x = 705,966,167.46
  5. Step 5: Solve for x
    x = 705,966,167.46/30,307.12
  6. Step 6: Final answer
    x = 23,293.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.