Home / 20,215.58-27,898.65-11,263.46

Finding the Fourth Proportional to 20,215.58, 27,898.65 and 11,263.46

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Solution

The fourth proportional to 20,215.58, 27,898.65 and 11,263.46 is: 15,544.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,215.58 : 27,898.65 = 11,263.46 : x
  2. Step 2: Convert to fraction form
    20,215.58/27,898.65 = 11,263.46/x
  3. Step 3: Cross multiply
    20,215.58x = 27,898.65 × 11,263.46
  4. Step 4: Simplify right side
    20,215.58x = 314,235,188.84
  5. Step 5: Solve for x
    x = 314,235,188.84/20,215.58
  6. Step 6: Final answer
    x = 15,544.21

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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.