Home / 28,521.72-39,369.12-16,582.80

Finding the Fourth Proportional to 28,521.72, 39,369.12 and 16,582.80

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Solution

The fourth proportional to 28,521.72, 39,369.12 and 16,582.80 is: 22,889.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,521.72 : 39,369.12 = 16,582.80 : x
  2. Step 2: Convert to fraction form
    28,521.72/39,369.12 = 16,582.80/x
  3. Step 3: Cross multiply
    28,521.72x = 39,369.12 × 16,582.80
  4. Step 4: Simplify right side
    28,521.72x = 652,850,243.14
  5. Step 5: Solve for x
    x = 652,850,243.14/28,521.72
  6. Step 6: Final answer
    x = 22,889.58

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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.