Home / 20,913.33-28,864.85-12,534.69

Finding the Fourth Proportional to 20,913.33, 28,864.85 and 12,534.69

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Solution

The fourth proportional to 20,913.33, 28,864.85 and 12,534.69 is: 17,300.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,913.33 : 28,864.85 = 12,534.69 : x
  2. Step 2: Convert to fraction form
    20,913.33/28,864.85 = 12,534.69/x
  3. Step 3: Cross multiply
    20,913.33x = 28,864.85 × 12,534.69
  4. Step 4: Simplify right side
    20,913.33x = 361,811,883.97
  5. Step 5: Solve for x
    x = 361,811,883.97/20,913.33
  6. Step 6: Final answer
    x = 17,300.54

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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.