Home / 38,390.58-52,976.81-21,159.53

Finding the Fourth Proportional to 38,390.58, 52,976.81 and 21,159.53

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Solution

The fourth proportional to 38,390.58, 52,976.81 and 21,159.53 is: 29,198.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,390.58 : 52,976.81 = 21,159.53 : x
  2. Step 2: Convert to fraction form
    38,390.58/52,976.81 = 21,159.53/x
  3. Step 3: Cross multiply
    38,390.58x = 52,976.81 × 21,159.53
  4. Step 4: Simplify right side
    38,390.58x = 1,120,964,400.50
  5. Step 5: Solve for x
    x = 1,120,964,400.50/38,390.58
  6. Step 6: Final answer
    x = 29,198.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.