Home / 20,327.16-28,052-11,376.20

Finding the Fourth Proportional to 20,327.16, 28,052 and 11,376.20

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Solution

The fourth proportional to 20,327.16, 28,052 and 11,376.20 is: 15,699.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,327.16 : 28,052 = 11,376.20 : x
  2. Step 2: Convert to fraction form
    20,327.16/28,052 = 11,376.20/x
  3. Step 3: Cross multiply
    20,327.16x = 28,052 × 11,376.20
  4. Step 4: Simplify right side
    20,327.16x = 319,125,162.40
  5. Step 5: Solve for x
    x = 319,125,162.40/20,327.16
  6. Step 6: Final answer
    x = 15,699.45

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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.