Home / 20,760.66-28,640.98-14,476.68

Finding the Fourth Proportional to 20,760.66, 28,640.98 and 14,476.68

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Solution

The fourth proportional to 20,760.66, 28,640.98 and 14,476.68 is: 19,971.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,760.66 : 28,640.98 = 14,476.68 : x
  2. Step 2: Convert to fraction form
    20,760.66/28,640.98 = 14,476.68/x
  3. Step 3: Cross multiply
    20,760.66x = 28,640.98 × 14,476.68
  4. Step 4: Simplify right side
    20,760.66x = 414,626,302.35
  5. Step 5: Solve for x
    x = 414,626,302.35/20,760.66
  6. Step 6: Final answer
    x = 19,971.73

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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.