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Finding the Fourth Proportional to 28,002.00, 38,642.87 and 16,671.93

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Solution

The fourth proportional to 28,002.00, 38,642.87 and 16,671.93 is: 23,007.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,002.00 : 38,642.87 = 16,671.93 : x
  2. Step 2: Convert to fraction form
    28,002.00/38,642.87 = 16,671.93/x
  3. Step 3: Cross multiply
    28,002.00x = 38,642.87 × 16,671.93
  4. Step 4: Simplify right side
    28,002.00x = 644,251,120.41
  5. Step 5: Solve for x
    x = 644,251,120.41/28,002.00
  6. Step 6: Final answer
    x = 23,007.32

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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.