Home / 21,186.63-31,787.24-9,508.05

Finding the Fourth Proportional to 21,186.63, 31,787.24 and 9,508.05

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Solution

The fourth proportional to 21,186.63, 31,787.24 and 9,508.05 is: 14,265.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,186.63 : 31,787.24 = 9,508.05 : x
  2. Step 2: Convert to fraction form
    21,186.63/31,787.24 = 9,508.05/x
  3. Step 3: Cross multiply
    21,186.63x = 31,787.24 × 9,508.05
  4. Step 4: Simplify right side
    21,186.63x = 302,234,619.74
  5. Step 5: Solve for x
    x = 302,234,619.74/21,186.63
  6. Step 6: Final answer
    x = 14,265.35

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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.