Home / 20,327.67-28,052.73-11,376.72

Finding the Fourth Proportional to 20,327.67, 28,052.73 and 11,376.72

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Solution

The fourth proportional to 20,327.67, 28,052.73 and 11,376.72 is: 15,700.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,327.67 : 28,052.73 = 11,376.72 : x
  2. Step 2: Convert to fraction form
    20,327.67/28,052.73 = 11,376.72/x
  3. Step 3: Cross multiply
    20,327.67x = 28,052.73 × 11,376.72
  4. Step 4: Simplify right side
    20,327.67x = 319,148,054.45
  5. Step 5: Solve for x
    x = 319,148,054.45/20,327.67
  6. Step 6: Final answer
    x = 15,700.18

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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.