Home / 19,026.72-26,415-18,456.48

Finding the Fourth Proportional to 19,026.72, 26,415 and 18,456.48

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Solution

The fourth proportional to 19,026.72, 26,415 and 18,456.48 is: 25,623.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,026.72 : 26,415 = 18,456.48 : x
  2. Step 2: Convert to fraction form
    19,026.72/26,415 = 18,456.48/x
  3. Step 3: Cross multiply
    19,026.72x = 26,415 × 18,456.48
  4. Step 4: Simplify right side
    19,026.72x = 487,527,919.20
  5. Step 5: Solve for x
    x = 487,527,919.20/19,026.72
  6. Step 6: Final answer
    x = 25,623.33

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.