Home / 28,230.78-38,869.80-23,972.88

Finding the Fourth Proportional to 28,230.78, 38,869.80 and 23,972.88

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Solution

The fourth proportional to 28,230.78, 38,869.80 and 23,972.88 is: 33,007.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,230.78 : 38,869.80 = 23,972.88 : x
  2. Step 2: Convert to fraction form
    28,230.78/38,869.80 = 23,972.88/x
  3. Step 3: Cross multiply
    28,230.78x = 38,869.80 × 23,972.88
  4. Step 4: Simplify right side
    28,230.78x = 931,821,051.02
  5. Step 5: Solve for x
    x = 931,821,051.02/28,230.78
  6. Step 6: Final answer
    x = 33,007.27

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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.