Home / 20,085.32-27,717.18-12,124.64

Finding the Fourth Proportional to 20,085.32, 27,717.18 and 12,124.64

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Solution

The fourth proportional to 20,085.32, 27,717.18 and 12,124.64 is: 16,731.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,085.32 : 27,717.18 = 12,124.64 : x
  2. Step 2: Convert to fraction form
    20,085.32/27,717.18 = 12,124.64/x
  3. Step 3: Cross multiply
    20,085.32x = 27,717.18 × 12,124.64
  4. Step 4: Simplify right side
    20,085.32x = 336,060,829.32
  5. Step 5: Solve for x
    x = 336,060,829.32/20,085.32
  6. Step 6: Final answer
    x = 16,731.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.