Home / 20,667.97-28,532.69-16,590.43

Finding the Fourth Proportional to 20,667.97, 28,532.69 and 16,590.43

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Solution

The fourth proportional to 20,667.97, 28,532.69 and 16,590.43 is: 22,903.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,667.97 : 28,532.69 = 16,590.43 : x
  2. Step 2: Convert to fraction form
    20,667.97/28,532.69 = 16,590.43/x
  3. Step 3: Cross multiply
    20,667.97x = 28,532.69 × 16,590.43
  4. Step 4: Simplify right side
    20,667.97x = 473,369,596.16
  5. Step 5: Solve for x
    x = 473,369,596.16/20,667.97
  6. Step 6: Final answer
    x = 22,903.54

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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.