Home / 28,801-39,747.42-16,225.75

Finding the Fourth Proportional to 28,801, 39,747.42 and 16,225.75

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Solution

The fourth proportional to 28,801, 39,747.42 and 16,225.75 is: 22,392.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,801 : 39,747.42 = 16,225.75 : x
  2. Step 2: Convert to fraction form
    28,801/39,747.42 = 16,225.75/x
  3. Step 3: Cross multiply
    28,801x = 39,747.42 × 16,225.75
  4. Step 4: Simplify right side
    28,801x = 644,931,700.07
  5. Step 5: Solve for x
    x = 644,931,700.07/28,801
  6. Step 6: Final answer
    x = 22,392.68

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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.