Home / 20,043.16-27,672.18-12,875.98

Finding the Fourth Proportional to 20,043.16, 27,672.18 and 12,875.98

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Solution

The fourth proportional to 20,043.16, 27,672.18 and 12,875.98 is: 17,776.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,043.16 : 27,672.18 = 12,875.98 : x
  2. Step 2: Convert to fraction form
    20,043.16/27,672.18 = 12,875.98/x
  3. Step 3: Cross multiply
    20,043.16x = 27,672.18 × 12,875.98
  4. Step 4: Simplify right side
    20,043.16x = 356,306,436.24
  5. Step 5: Solve for x
    x = 356,306,436.24/20,043.16
  6. Step 6: Final answer
    x = 17,776.96

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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.