Home / 28,314.68-39,056.88-20,367.56

Finding the Fourth Proportional to 28,314.68, 39,056.88 and 20,367.56

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Solution

The fourth proportional to 28,314.68, 39,056.88 and 20,367.56 is: 28,094.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,314.68 : 39,056.88 = 20,367.56 : x
  2. Step 2: Convert to fraction form
    28,314.68/39,056.88 = 20,367.56/x
  3. Step 3: Cross multiply
    28,314.68x = 39,056.88 × 20,367.56
  4. Step 4: Simplify right side
    28,314.68x = 795,493,346.81
  5. Step 5: Solve for x
    x = 795,493,346.81/28,314.68
  6. Step 6: Final answer
    x = 28,094.73

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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.