Home / 20,743.09-28,628.03-12,675.08

Finding the Fourth Proportional to 20,743.09, 28,628.03 and 12,675.08

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Solution

The fourth proportional to 20,743.09, 28,628.03 and 12,675.08 is: 17,493.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,743.09 : 28,628.03 = 12,675.08 : x
  2. Step 2: Convert to fraction form
    20,743.09/28,628.03 = 12,675.08/x
  3. Step 3: Cross multiply
    20,743.09x = 28,628.03 × 12,675.08
  4. Step 4: Simplify right side
    20,743.09x = 362,862,673.75
  5. Step 5: Solve for x
    x = 362,862,673.75/20,743.09
  6. Step 6: Final answer
    x = 17,493.19

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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.