Home / 19,105.24-28,617.30-15,387.40

Finding the Fourth Proportional to 19,105.24, 28,617.30 and 15,387.40

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Solution

The fourth proportional to 19,105.24, 28,617.30 and 15,387.40 is: 23,048.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,105.24 : 28,617.30 = 15,387.40 : x
  2. Step 2: Convert to fraction form
    19,105.24/28,617.30 = 15,387.40/x
  3. Step 3: Cross multiply
    19,105.24x = 28,617.30 × 15,387.40
  4. Step 4: Simplify right side
    19,105.24x = 440,345,842.02
  5. Step 5: Solve for x
    x = 440,345,842.02/19,105.24
  6. Step 6: Final answer
    x = 23,048.43

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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.