Home / 21,988.14-32,983.74-8,840.52

Finding the Fourth Proportional to 21,988.14, 32,983.74 and 8,840.52

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Solution

The fourth proportional to 21,988.14, 32,983.74 and 8,840.52 is: 13,261.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,988.14 : 32,983.74 = 8,840.52 : x
  2. Step 2: Convert to fraction form
    21,988.14/32,983.74 = 8,840.52/x
  3. Step 3: Cross multiply
    21,988.14x = 32,983.74 × 8,840.52
  4. Step 4: Simplify right side
    21,988.14x = 291,593,413.14
  5. Step 5: Solve for x
    x = 291,593,413.14/21,988.14
  6. Step 6: Final answer
    x = 13,261.40

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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.