Home / 23,928.77-33,021.37-13,318.40

Finding the Fourth Proportional to 23,928.77, 33,021.37 and 13,318.40

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Solution

The fourth proportional to 23,928.77, 33,021.37 and 13,318.40 is: 18,379.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,928.77 : 33,021.37 = 13,318.40 : x
  2. Step 2: Convert to fraction form
    23,928.77/33,021.37 = 13,318.40/x
  3. Step 3: Cross multiply
    23,928.77x = 33,021.37 × 13,318.40
  4. Step 4: Simplify right side
    23,928.77x = 439,791,820.54
  5. Step 5: Solve for x
    x = 439,791,820.54/23,928.77
  6. Step 6: Final answer
    x = 18,379.21

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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.