Home / 21,837.47-32,745.87-9,987.77

Finding the Fourth Proportional to 21,837.47, 32,745.87 and 9,987.77

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Solution

The fourth proportional to 21,837.47, 32,745.87 and 9,987.77 is: 14,976.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,837.47 : 32,745.87 = 9,987.77 : x
  2. Step 2: Convert to fraction form
    21,837.47/32,745.87 = 9,987.77/x
  3. Step 3: Cross multiply
    21,837.47x = 32,745.87 × 9,987.77
  4. Step 4: Simplify right side
    21,837.47x = 327,058,299.87
  5. Step 5: Solve for x
    x = 327,058,299.87/21,837.47
  6. Step 6: Final answer
    x = 14,976.94

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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.