Home / 21,083.32-31,616.10-8,594.80

Finding the Fourth Proportional to 21,083.32, 31,616.10 and 8,594.80

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Solution

The fourth proportional to 21,083.32, 31,616.10 and 8,594.80 is: 12,888.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,083.32 : 31,616.10 = 8,594.80 : x
  2. Step 2: Convert to fraction form
    21,083.32/31,616.10 = 8,594.80/x
  3. Step 3: Cross multiply
    21,083.32x = 31,616.10 × 8,594.80
  4. Step 4: Simplify right side
    21,083.32x = 271,734,056.28
  5. Step 5: Solve for x
    x = 271,734,056.28/21,083.32
  6. Step 6: Final answer
    x = 12,888.58

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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.