Home / 38,557.70-57,739.35-28,643.30

Finding the Fourth Proportional to 38,557.70, 57,739.35 and 28,643.30

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Solution

The fourth proportional to 38,557.70, 57,739.35 and 28,643.30 is: 42,892.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,557.70 : 57,739.35 = 28,643.30 : x
  2. Step 2: Convert to fraction form
    38,557.70/57,739.35 = 28,643.30/x
  3. Step 3: Cross multiply
    38,557.70x = 57,739.35 × 28,643.30
  4. Step 4: Simplify right side
    38,557.70x = 1,653,845,523.86
  5. Step 5: Solve for x
    x = 1,653,845,523.86/38,557.70
  6. Step 6: Final answer
    x = 42,892.74

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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.