Home / 28,542.02-42,813.34-12,747.85

Finding the Fourth Proportional to 28,542.02, 42,813.34 and 12,747.85

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Solution

The fourth proportional to 28,542.02, 42,813.34 and 12,747.85 is: 19,121.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,542.02 : 42,813.34 = 12,747.85 : x
  2. Step 2: Convert to fraction form
    28,542.02/42,813.34 = 12,747.85/x
  3. Step 3: Cross multiply
    28,542.02x = 42,813.34 × 12,747.85
  4. Step 4: Simplify right side
    28,542.02x = 545,777,897.42
  5. Step 5: Solve for x
    x = 545,777,897.42/28,542.02
  6. Step 6: Final answer
    x = 19,121.91

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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.