Home / 28,317.09-42,480.75-11,667.86

Finding the Fourth Proportional to 28,317.09, 42,480.75 and 11,667.86

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Solution

The fourth proportional to 28,317.09, 42,480.75 and 11,667.86 is: 17,503.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,317.09 : 42,480.75 = 11,667.86 : x
  2. Step 2: Convert to fraction form
    28,317.09/42,480.75 = 11,667.86/x
  3. Step 3: Cross multiply
    28,317.09x = 42,480.75 × 11,667.86
  4. Step 4: Simplify right side
    28,317.09x = 495,659,231.29
  5. Step 5: Solve for x
    x = 495,659,231.29/28,317.09
  6. Step 6: Final answer
    x = 17,503.89

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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.