Home / 28,573.66-42,870.57-12,777.22

Finding the Fourth Proportional to 28,573.66, 42,870.57 and 12,777.22

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Solution

The fourth proportional to 28,573.66, 42,870.57 and 12,777.22 is: 19,170.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,573.66 : 42,870.57 = 12,777.22 : x
  2. Step 2: Convert to fraction form
    28,573.66/42,870.57 = 12,777.22/x
  3. Step 3: Cross multiply
    28,573.66x = 42,870.57 × 12,777.22
  4. Step 4: Simplify right side
    28,573.66x = 547,766,704.42
  5. Step 5: Solve for x
    x = 547,766,704.42/28,573.66
  6. Step 6: Final answer
    x = 19,170.34

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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.