Home / 28,060.88-42,051.22-20,606.86

Finding the Fourth Proportional to 28,060.88, 42,051.22 and 20,606.86

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Solution

The fourth proportional to 28,060.88, 42,051.22 and 20,606.86 is: 30,880.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,060.88 : 42,051.22 = 20,606.86 : x
  2. Step 2: Convert to fraction form
    28,060.88/42,051.22 = 20,606.86/x
  3. Step 3: Cross multiply
    28,060.88x = 42,051.22 × 20,606.86
  4. Step 4: Simplify right side
    28,060.88x = 866,543,603.37
  5. Step 5: Solve for x
    x = 866,543,603.37/28,060.88
  6. Step 6: Final answer
    x = 30,880.84

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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.