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Finding the Fourth Proportional to 32,816.40, 49,111.20 and 19,678.20

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Solution

The fourth proportional to 32,816.40, 49,111.20 and 19,678.20 is: 29,449.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,816.40 : 49,111.20 = 19,678.20 : x
  2. Step 2: Convert to fraction form
    32,816.40/49,111.20 = 19,678.20/x
  3. Step 3: Cross multiply
    32,816.40x = 49,111.20 × 19,678.20
  4. Step 4: Simplify right side
    32,816.40x = 966,420,015.84
  5. Step 5: Solve for x
    x = 966,420,015.84/32,816.40
  6. Step 6: Final answer
    x = 29,449.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.