Home / 20,532.94-28,334.88-11,580.36

Finding the Fourth Proportional to 20,532.94, 28,334.88 and 11,580.36

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Solution

The fourth proportional to 20,532.94, 28,334.88 and 11,580.36 is: 15,980.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,532.94 : 28,334.88 = 11,580.36 : x
  2. Step 2: Convert to fraction form
    20,532.94/28,334.88 = 11,580.36/x
  3. Step 3: Cross multiply
    20,532.94x = 28,334.88 × 11,580.36
  4. Step 4: Simplify right side
    20,532.94x = 328,128,110.96
  5. Step 5: Solve for x
    x = 328,128,110.96/20,532.94
  6. Step 6: Final answer
    x = 15,980.57

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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.