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Finding the Fourth Proportional to 32,792.32, 45,253.12 and 20,220.16

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Solution

The fourth proportional to 32,792.32, 45,253.12 and 20,220.16 is: 27,903.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,792.32 : 45,253.12 = 20,220.16 : x
  2. Step 2: Convert to fraction form
    32,792.32/45,253.12 = 20,220.16/x
  3. Step 3: Cross multiply
    32,792.32x = 45,253.12 × 20,220.16
  4. Step 4: Simplify right side
    32,792.32x = 915,025,326.90
  5. Step 5: Solve for x
    x = 915,025,326.90/32,792.32
  6. Step 6: Final answer
    x = 27,903.65

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