Home / 19,431.64-29,141.25-8,335.34

Finding the Fourth Proportional to 19,431.64, 29,141.25 and 8,335.34

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Solution

The fourth proportional to 19,431.64, 29,141.25 and 8,335.34 is: 12,500.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,431.64 : 29,141.25 = 8,335.34 : x
  2. Step 2: Convert to fraction form
    19,431.64/29,141.25 = 8,335.34/x
  3. Step 3: Cross multiply
    19,431.64x = 29,141.25 × 8,335.34
  4. Step 4: Simplify right side
    19,431.64x = 242,902,226.78
  5. Step 5: Solve for x
    x = 242,902,226.78/19,431.64
  6. Step 6: Final answer
    x = 12,500.35

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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.