Home / 21,056.18-31,565.66-8,586.63

Finding the Fourth Proportional to 21,056.18, 31,565.66 and 8,586.63

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Solution

The fourth proportional to 21,056.18, 31,565.66 and 8,586.63 is: 12,872.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,056.18 : 31,565.66 = 8,586.63 : x
  2. Step 2: Convert to fraction form
    21,056.18/31,565.66 = 8,586.63/x
  3. Step 3: Cross multiply
    21,056.18x = 31,565.66 × 8,586.63
  4. Step 4: Simplify right side
    21,056.18x = 271,042,600.19
  5. Step 5: Solve for x
    x = 271,042,600.19/21,056.18
  6. Step 6: Final answer
    x = 12,872.36

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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.