Home / 20,293.79-27,995.65-12,736.38

Finding the Fourth Proportional to 20,293.79, 27,995.65 and 12,736.38

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Solution

The fourth proportional to 20,293.79, 27,995.65 and 12,736.38 is: 17,570.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,293.79 : 27,995.65 = 12,736.38 : x
  2. Step 2: Convert to fraction form
    20,293.79/27,995.65 = 12,736.38/x
  3. Step 3: Cross multiply
    20,293.79x = 27,995.65 × 12,736.38
  4. Step 4: Simplify right side
    20,293.79x = 356,563,204.91
  5. Step 5: Solve for x
    x = 356,563,204.91/20,293.79
  6. Step 6: Final answer
    x = 17,570.07

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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.