Home / 37,980-52,413.48-21,214.08

Finding the Fourth Proportional to 37,980, 52,413.48 and 21,214.08

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Solution

The fourth proportional to 37,980, 52,413.48 and 21,214.08 is: 29,276.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,980 : 52,413.48 = 21,214.08 : x
  2. Step 2: Convert to fraction form
    37,980/52,413.48 = 21,214.08/x
  3. Step 3: Cross multiply
    37,980x = 52,413.48 × 21,214.08
  4. Step 4: Simplify right side
    37,980x = 1,111,903,757.80
  5. Step 5: Solve for x
    x = 1,111,903,757.80/37,980
  6. Step 6: Final answer
    x = 29,276.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.