Home / 15,620.78-23,331.34-14,137.64

Finding the Fourth Proportional to 15,620.78, 23,331.34 and 14,137.64

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Solution

The fourth proportional to 15,620.78, 23,331.34 and 14,137.64 is: 21,116.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,620.78 : 23,331.34 = 14,137.64 : x
  2. Step 2: Convert to fraction form
    15,620.78/23,331.34 = 14,137.64/x
  3. Step 3: Cross multiply
    15,620.78x = 23,331.34 × 14,137.64
  4. Step 4: Simplify right side
    15,620.78x = 329,850,085.64
  5. Step 5: Solve for x
    x = 329,850,085.64/15,620.78
  6. Step 6: Final answer
    x = 21,116.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.