Home / 37,890.96-52,290-21,976.08

Finding the Fourth Proportional to 37,890.96, 52,290 and 21,976.08

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Solution

The fourth proportional to 37,890.96, 52,290 and 21,976.08 is: 30,327.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,890.96 : 52,290 = 21,976.08 : x
  2. Step 2: Convert to fraction form
    37,890.96/52,290 = 21,976.08/x
  3. Step 3: Cross multiply
    37,890.96x = 52,290 × 21,976.08
  4. Step 4: Simplify right side
    37,890.96x = 1,149,129,223.20
  5. Step 5: Solve for x
    x = 1,149,129,223.20/37,890.96
  6. Step 6: Final answer
    x = 30,327.27

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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.