Home / 21,677.16-32,515.76-18,413.08

Finding the Fourth Proportional to 21,677.16, 32,515.76 and 18,413.08

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Solution

The fourth proportional to 21,677.16, 32,515.76 and 18,413.08 is: 27,619.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,677.16 : 32,515.76 = 18,413.08 : x
  2. Step 2: Convert to fraction form
    21,677.16/32,515.76 = 18,413.08/x
  3. Step 3: Cross multiply
    21,677.16x = 32,515.76 × 18,413.08
  4. Step 4: Simplify right side
    21,677.16x = 598,715,290.14
  5. Step 5: Solve for x
    x = 598,715,290.14/21,677.16
  6. Step 6: Final answer
    x = 27,619.64

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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.