Home / 19,780.86-27,304.50-12,232.98

Finding the Fourth Proportional to 19,780.86, 27,304.50 and 12,232.98

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Solution

The fourth proportional to 19,780.86, 27,304.50 and 12,232.98 is: 16,885.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,780.86 : 27,304.50 = 12,232.98 : x
  2. Step 2: Convert to fraction form
    19,780.86/27,304.50 = 12,232.98/x
  3. Step 3: Cross multiply
    19,780.86x = 27,304.50 × 12,232.98
  4. Step 4: Simplify right side
    19,780.86x = 334,015,402.41
  5. Step 5: Solve for x
    x = 334,015,402.41/19,780.86
  6. Step 6: Final answer
    x = 16,885.79

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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.