Home / 28,074.42-38,742.77-15,327.62

Finding the Fourth Proportional to 28,074.42, 38,742.77 and 15,327.62

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Solution

The fourth proportional to 28,074.42, 38,742.77 and 15,327.62 is: 21,152.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,074.42 : 38,742.77 = 15,327.62 : x
  2. Step 2: Convert to fraction form
    28,074.42/38,742.77 = 15,327.62/x
  3. Step 3: Cross multiply
    28,074.42x = 38,742.77 × 15,327.62
  4. Step 4: Simplify right side
    28,074.42x = 593,834,456.31
  5. Step 5: Solve for x
    x = 593,834,456.31/28,074.42
  6. Step 6: Final answer
    x = 21,152.15

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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.