Home / 28,656.92-42,986.57-13,656.33

Finding the Fourth Proportional to 28,656.92, 42,986.57 and 13,656.33

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Solution

The fourth proportional to 28,656.92, 42,986.57 and 13,656.33 is: 20,485.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,656.92 : 42,986.57 = 13,656.33 : x
  2. Step 2: Convert to fraction form
    28,656.92/42,986.57 = 13,656.33/x
  3. Step 3: Cross multiply
    28,656.92x = 42,986.57 × 13,656.33
  4. Step 4: Simplify right side
    28,656.92x = 587,038,717.21
  5. Step 5: Solve for x
    x = 587,038,717.21/28,656.92
  6. Step 6: Final answer
    x = 20,485.06

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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.