Home / 21,073.66-31,601.70-8,585.18

Finding the Fourth Proportional to 21,073.66, 31,601.70 and 8,585.18

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Solution

The fourth proportional to 21,073.66, 31,601.70 and 8,585.18 is: 12,874.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,073.66 : 31,601.70 = 8,585.18 : x
  2. Step 2: Convert to fraction form
    21,073.66/31,601.70 = 8,585.18/x
  3. Step 3: Cross multiply
    21,073.66x = 31,601.70 × 8,585.18
  4. Step 4: Simplify right side
    21,073.66x = 271,306,282.81
  5. Step 5: Solve for x
    x = 271,306,282.81/21,073.66
  6. Step 6: Final answer
    x = 12,874.19

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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.