Home / 32,490.40-48,752.88-13,773.28

Finding the Fourth Proportional to 32,490.40, 48,752.88 and 13,773.28

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Solution

The fourth proportional to 32,490.40, 48,752.88 and 13,773.28 is: 20,667.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,490.40 : 48,752.88 = 13,773.28 : x
  2. Step 2: Convert to fraction form
    32,490.40/48,752.88 = 13,773.28/x
  3. Step 3: Cross multiply
    32,490.40x = 48,752.88 × 13,773.28
  4. Step 4: Simplify right side
    32,490.40x = 671,487,067.05
  5. Step 5: Solve for x
    x = 671,487,067.05/32,490.40
  6. Step 6: Final answer
    x = 20,667.25

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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.