Home / 23,990.78-33,106.93-13,380.19

Finding the Fourth Proportional to 23,990.78, 33,106.93 and 13,380.19

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Solution

The fourth proportional to 23,990.78, 33,106.93 and 13,380.19 is: 18,464.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,990.78 : 33,106.93 = 13,380.19 : x
  2. Step 2: Convert to fraction form
    23,990.78/33,106.93 = 13,380.19/x
  3. Step 3: Cross multiply
    23,990.78x = 33,106.93 × 13,380.19
  4. Step 4: Simplify right side
    23,990.78x = 442,976,897.50
  5. Step 5: Solve for x
    x = 442,976,897.50/23,990.78
  6. Step 6: Final answer
    x = 18,464.46

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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.