Home / 20,927.58-28,880.06-11,496.14

Finding the Fourth Proportional to 20,927.58, 28,880.06 and 11,496.14

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Solution

The fourth proportional to 20,927.58, 28,880.06 and 11,496.14 is: 15,864.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,927.58 : 28,880.06 = 11,496.14 : x
  2. Step 2: Convert to fraction form
    20,927.58/28,880.06 = 11,496.14/x
  3. Step 3: Cross multiply
    20,927.58x = 28,880.06 × 11,496.14
  4. Step 4: Simplify right side
    20,927.58x = 332,009,011.09
  5. Step 5: Solve for x
    x = 332,009,011.09/20,927.58
  6. Step 6: Final answer
    x = 15,864.66

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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.