Home / 20,255.40-27,953.46-11,302.74

Finding the Fourth Proportional to 20,255.40, 27,953.46 and 11,302.74

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Solution

The fourth proportional to 20,255.40, 27,953.46 and 11,302.74 is: 15,598.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,255.40 : 27,953.46 = 11,302.74 : x
  2. Step 2: Convert to fraction form
    20,255.40/27,953.46 = 11,302.74/x
  3. Step 3: Cross multiply
    20,255.40x = 27,953.46 × 11,302.74
  4. Step 4: Simplify right side
    20,255.40x = 315,950,690.48
  5. Step 5: Solve for x
    x = 315,950,690.48/20,255.40
  6. Step 6: Final answer
    x = 15,598.34

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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.