Home / 20,848.92-28,772.04-11,417.48

Finding the Fourth Proportional to 20,848.92, 28,772.04 and 11,417.48

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Solution

The fourth proportional to 20,848.92, 28,772.04 and 11,417.48 is: 15,756.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,848.92 : 28,772.04 = 11,417.48 : x
  2. Step 2: Convert to fraction form
    20,848.92/28,772.04 = 11,417.48/x
  3. Step 3: Cross multiply
    20,848.92x = 28,772.04 × 11,417.48
  4. Step 4: Simplify right side
    20,848.92x = 328,504,191.26
  5. Step 5: Solve for x
    x = 328,504,191.26/20,848.92
  6. Step 6: Final answer
    x = 15,756.41

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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.