Home / 26,018.61-38,990.54-12,855.60

Finding the Fourth Proportional to 26,018.61, 38,990.54 and 12,855.60

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Solution

The fourth proportional to 26,018.61, 38,990.54 and 12,855.60 is: 19,264.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,018.61 : 38,990.54 = 12,855.60 : x
  2. Step 2: Convert to fraction form
    26,018.61/38,990.54 = 12,855.60/x
  3. Step 3: Cross multiply
    26,018.61x = 38,990.54 × 12,855.60
  4. Step 4: Simplify right side
    26,018.61x = 501,246,786.02
  5. Step 5: Solve for x
    x = 501,246,786.02/26,018.61
  6. Step 6: Final answer
    x = 19,264.93

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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.