Home / 28,742.04-39,663.37-15,994.87

Finding the Fourth Proportional to 28,742.04, 39,663.37 and 15,994.87

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Solution

The fourth proportional to 28,742.04, 39,663.37 and 15,994.87 is: 22,072.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,742.04 : 39,663.37 = 15,994.87 : x
  2. Step 2: Convert to fraction form
    28,742.04/39,663.37 = 15,994.87/x
  3. Step 3: Cross multiply
    28,742.04x = 39,663.37 × 15,994.87
  4. Step 4: Simplify right side
    28,742.04x = 634,410,367.75
  5. Step 5: Solve for x
    x = 634,410,367.75/28,742.04
  6. Step 6: Final answer
    x = 22,072.56

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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.