Home / 28,092.72-38,762.24-17,887.86

Finding the Fourth Proportional to 28,092.72, 38,762.24 and 17,887.86

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Solution

The fourth proportional to 28,092.72, 38,762.24 and 17,887.86 is: 24,681.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,092.72 : 38,762.24 = 17,887.86 : x
  2. Step 2: Convert to fraction form
    28,092.72/38,762.24 = 17,887.86/x
  3. Step 3: Cross multiply
    28,092.72x = 38,762.24 × 17,887.86
  4. Step 4: Simplify right side
    28,092.72x = 693,373,522.41
  5. Step 5: Solve for x
    x = 693,373,522.41/28,092.72
  6. Step 6: Final answer
    x = 24,681.61

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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.