Home / 28,797,574.28-39,741,029.46-15,744,848.20

Finding the Fourth Proportional to 28,797,574.28, 39,741,029.46 and 15,744,848.20

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Solution

The fourth proportional to 28,797,574.28, 39,741,029.46 and 15,744,848.20 is: 21,728,096.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,797,574.28 : 39,741,029.46 = 15,744,848.20 : x
  2. Step 2: Convert to fraction form
    28,797,574.28/39,741,029.46 = 15,744,848.20/x
  3. Step 3: Cross multiply
    28,797,574.28x = 39,741,029.46 × 15,744,848.20
  4. Step 4: Simplify right side
    28,797,574.28x = 625,716,476,159,428
  5. Step 5: Solve for x
    x = 625,716,476,159,428/28,797,574.28
  6. Step 6: Final answer
    x = 21,728,096.61

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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.