Home / 20,648.09-28,442.26-16,658.03

Finding the Fourth Proportional to 20,648.09, 28,442.26 and 16,658.03

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Solution

The fourth proportional to 20,648.09, 28,442.26 and 16,658.03 is: 22,946.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,648.09 : 28,442.26 = 16,658.03 : x
  2. Step 2: Convert to fraction form
    20,648.09/28,442.26 = 16,658.03/x
  3. Step 3: Cross multiply
    20,648.09x = 28,442.26 × 16,658.03
  4. Step 4: Simplify right side
    20,648.09x = 473,792,020.35
  5. Step 5: Solve for x
    x = 473,792,020.35/20,648.09
  6. Step 6: Final answer
    x = 22,946.05

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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.