Home / 20,532.54-28,334.86-11,580.01

Finding the Fourth Proportional to 20,532.54, 28,334.86 and 11,580.01

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Solution

The fourth proportional to 20,532.54, 28,334.86 and 11,580.01 is: 15,980.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,532.54 : 28,334.86 = 11,580.01 : x
  2. Step 2: Convert to fraction form
    20,532.54/28,334.86 = 11,580.01/x
  3. Step 3: Cross multiply
    20,532.54x = 28,334.86 × 11,580.01
  4. Step 4: Simplify right side
    20,532.54x = 328,118,086.88
  5. Step 5: Solve for x
    x = 328,118,086.88/20,532.54
  6. Step 6: Final answer
    x = 15,980.40

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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.