Home / 21,077.43-31,616.30-8,594.07

Finding the Fourth Proportional to 21,077.43, 31,616.30 and 8,594.07

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Solution

The fourth proportional to 21,077.43, 31,616.30 and 8,594.07 is: 12,891.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,077.43 : 31,616.30 = 8,594.07 : x
  2. Step 2: Convert to fraction form
    21,077.43/31,616.30 = 8,594.07/x
  3. Step 3: Cross multiply
    21,077.43x = 31,616.30 × 8,594.07
  4. Step 4: Simplify right side
    21,077.43x = 271,712,695.34
  5. Step 5: Solve for x
    x = 271,712,695.34/21,077.43
  6. Step 6: Final answer
    x = 12,891.17

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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.