Home / 38,451.60-57,628.80-28,051.20

Finding the Fourth Proportional to 38,451.60, 57,628.80 and 28,051.20

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Solution

The fourth proportional to 38,451.60, 57,628.80 and 28,051.20 is: 42,041.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,451.60 : 57,628.80 = 28,051.20 : x
  2. Step 2: Convert to fraction form
    38,451.60/57,628.80 = 28,051.20/x
  3. Step 3: Cross multiply
    38,451.60x = 57,628.80 × 28,051.20
  4. Step 4: Simplify right side
    38,451.60x = 1,616,556,994.56
  5. Step 5: Solve for x
    x = 1,616,556,994.56/38,451.60
  6. Step 6: Final answer
    x = 42,041.35

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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.