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Finding the Fourth Proportional to 32,553.60, 48,830.40 and 21,278.40

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Solution

The fourth proportional to 32,553.60, 48,830.40 and 21,278.40 is: 31,917.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,553.60 : 48,830.40 = 21,278.40 : x
  2. Step 2: Convert to fraction form
    32,553.60/48,830.40 = 21,278.40/x
  3. Step 3: Cross multiply
    32,553.60x = 48,830.40 × 21,278.40
  4. Step 4: Simplify right side
    32,553.60x = 1,039,032,783.36
  5. Step 5: Solve for x
    x = 1,039,032,783.36/32,553.60
  6. Step 6: Final answer
    x = 31,917.60

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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.