Home / 28,327.72-42,505.86-20,060.86

Finding the Fourth Proportional to 28,327.72, 42,505.86 and 20,060.86

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Solution

The fourth proportional to 28,327.72, 42,505.86 and 20,060.86 is: 30,101.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,327.72 : 42,505.86 = 20,060.86 : x
  2. Step 2: Convert to fraction form
    28,327.72/42,505.86 = 20,060.86/x
  3. Step 3: Cross multiply
    28,327.72x = 42,505.86 × 20,060.86
  4. Step 4: Simplify right side
    28,327.72x = 852,704,106.64
  5. Step 5: Solve for x
    x = 852,704,106.64/28,327.72
  6. Step 6: Final answer
    x = 30,101.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.