Home / 38,529.60-57,782.88-20,051.52

Finding the Fourth Proportional to 38,529.60, 57,782.88 and 20,051.52

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Solution

The fourth proportional to 38,529.60, 57,782.88 and 20,051.52 is: 30,071.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,529.60 : 57,782.88 = 20,051.52 : x
  2. Step 2: Convert to fraction form
    38,529.60/57,782.88 = 20,051.52/x
  3. Step 3: Cross multiply
    38,529.60x = 57,782.88 × 20,051.52
  4. Step 4: Simplify right side
    38,529.60x = 1,158,634,573.98
  5. Step 5: Solve for x
    x = 1,158,634,573.98/38,529.60
  6. Step 6: Final answer
    x = 30,071.28

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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.