Home / 20,255.18-30,393.71-9,866.93

Finding the Fourth Proportional to 20,255.18, 30,393.71 and 9,866.93

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Solution

The fourth proportional to 20,255.18, 30,393.71 and 9,866.93 is: 14,805.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,255.18 : 30,393.71 = 9,866.93 : x
  2. Step 2: Convert to fraction form
    20,255.18/30,393.71 = 9,866.93/x
  3. Step 3: Cross multiply
    20,255.18x = 30,393.71 × 9,866.93
  4. Step 4: Simplify right side
    20,255.18x = 299,892,635.66
  5. Step 5: Solve for x
    x = 299,892,635.66/20,255.18
  6. Step 6: Final answer
    x = 14,805.72

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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.