Home / 20,283.06-27,973.17-13,206.90

Finding the Fourth Proportional to 20,283.06, 27,973.17 and 13,206.90

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Solution

The fourth proportional to 20,283.06, 27,973.17 and 13,206.90 is: 18,214.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,283.06 : 27,973.17 = 13,206.90 : x
  2. Step 2: Convert to fraction form
    20,283.06/27,973.17 = 13,206.90/x
  3. Step 3: Cross multiply
    20,283.06x = 27,973.17 × 13,206.90
  4. Step 4: Simplify right side
    20,283.06x = 369,438,858.87
  5. Step 5: Solve for x
    x = 369,438,858.87/20,283.06
  6. Step 6: Final answer
    x = 18,214.16

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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.