Home / 19,065.72-28,588.10-15,142.10

Finding the Fourth Proportional to 19,065.72, 28,588.10 and 15,142.10

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Solution

The fourth proportional to 19,065.72, 28,588.10 and 15,142.10 is: 22,704.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,065.72 : 28,588.10 = 15,142.10 : x
  2. Step 2: Convert to fraction form
    19,065.72/28,588.10 = 15,142.10/x
  3. Step 3: Cross multiply
    19,065.72x = 28,588.10 × 15,142.10
  4. Step 4: Simplify right side
    19,065.72x = 432,883,869.01
  5. Step 5: Solve for x
    x = 432,883,869.01/19,065.72
  6. Step 6: Final answer
    x = 22,704.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.