Home / 28,994.60-40,032.05-18,109.33

Finding the Fourth Proportional to 28,994.60, 40,032.05 and 18,109.33

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Solution

The fourth proportional to 28,994.60, 40,032.05 and 18,109.33 is: 25,003.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,994.60 : 40,032.05 = 18,109.33 : x
  2. Step 2: Convert to fraction form
    28,994.60/40,032.05 = 18,109.33/x
  3. Step 3: Cross multiply
    28,994.60x = 40,032.05 × 18,109.33
  4. Step 4: Simplify right side
    28,994.60x = 724,953,413.40
  5. Step 5: Solve for x
    x = 724,953,413.40/28,994.60
  6. Step 6: Final answer
    x = 25,003.05

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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.