Home / 27,098.08-40,586.16-21,128.32

Finding the Fourth Proportional to 27,098.08, 40,586.16 and 21,128.32

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Solution

The fourth proportional to 27,098.08, 40,586.16 and 21,128.32 is: 31,644.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,098.08 : 40,586.16 = 21,128.32 : x
  2. Step 2: Convert to fraction form
    27,098.08/40,586.16 = 21,128.32/x
  3. Step 3: Cross multiply
    27,098.08x = 40,586.16 × 21,128.32
  4. Step 4: Simplify right side
    27,098.08x = 857,517,376.05
  5. Step 5: Solve for x
    x = 857,517,376.05/27,098.08
  6. Step 6: Final answer
    x = 31,644.95

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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.