Home / 28,252.60-38,940.46-21,444.28

Finding the Fourth Proportional to 28,252.60, 38,940.46 and 21,444.28

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Solution

The fourth proportional to 28,252.60, 38,940.46 and 21,444.28 is: 29,556.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,252.60 : 38,940.46 = 21,444.28 : x
  2. Step 2: Convert to fraction form
    28,252.60/38,940.46 = 21,444.28/x
  3. Step 3: Cross multiply
    28,252.60x = 38,940.46 × 21,444.28
  4. Step 4: Simplify right side
    28,252.60x = 835,050,127.57
  5. Step 5: Solve for x
    x = 835,050,127.57/28,252.60
  6. Step 6: Final answer
    x = 29,556.58

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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.