Home / 20,257.51-27,956.88-11,762.56

Finding the Fourth Proportional to 20,257.51, 27,956.88 and 11,762.56

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Solution

The fourth proportional to 20,257.51, 27,956.88 and 11,762.56 is: 16,233.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,257.51 : 27,956.88 = 11,762.56 : x
  2. Step 2: Convert to fraction form
    20,257.51/27,956.88 = 11,762.56/x
  3. Step 3: Cross multiply
    20,257.51x = 27,956.88 × 11,762.56
  4. Step 4: Simplify right side
    20,257.51x = 328,844,478.41
  5. Step 5: Solve for x
    x = 328,844,478.41/20,257.51
  6. Step 6: Final answer
    x = 16,233.21

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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.