Home / 20,266.24-27,959.70-12,709.36

Finding the Fourth Proportional to 20,266.24, 27,959.70 and 12,709.36

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Solution

The fourth proportional to 20,266.24, 27,959.70 and 12,709.36 is: 17,534.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,266.24 : 27,959.70 = 12,709.36 : x
  2. Step 2: Convert to fraction form
    20,266.24/27,959.70 = 12,709.36/x
  3. Step 3: Cross multiply
    20,266.24x = 27,959.70 × 12,709.36
  4. Step 4: Simplify right side
    20,266.24x = 355,349,892.79
  5. Step 5: Solve for x
    x = 355,349,892.79/20,266.24
  6. Step 6: Final answer
    x = 17,534.08

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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.