Home / 23,220.39-34,830.60-8,429.28

Finding the Fourth Proportional to 23,220.39, 34,830.60 and 8,429.28

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Solution

The fourth proportional to 23,220.39, 34,830.60 and 8,429.28 is: 12,643.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,220.39 : 34,830.60 = 8,429.28 : x
  2. Step 2: Convert to fraction form
    23,220.39/34,830.60 = 8,429.28/x
  3. Step 3: Cross multiply
    23,220.39x = 34,830.60 × 8,429.28
  4. Step 4: Simplify right side
    23,220.39x = 293,596,879.97
  5. Step 5: Solve for x
    x = 293,596,879.97/23,220.39
  6. Step 6: Final answer
    x = 12,643.93

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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.