Home / 20,733.51-28,612.83-12,668.48

Finding the Fourth Proportional to 20,733.51, 28,612.83 and 12,668.48

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Solution

The fourth proportional to 20,733.51, 28,612.83 and 12,668.48 is: 17,482.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,733.51 : 28,612.83 = 12,668.48 : x
  2. Step 2: Convert to fraction form
    20,733.51/28,612.83 = 12,668.48/x
  3. Step 3: Cross multiply
    20,733.51x = 28,612.83 × 12,668.48
  4. Step 4: Simplify right side
    20,733.51x = 362,481,064.60
  5. Step 5: Solve for x
    x = 362,481,064.60/20,733.51
  6. Step 6: Final answer
    x = 17,482.86

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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.