Home / 20,560.77-28,373.64-11,608.07

Finding the Fourth Proportional to 20,560.77, 28,373.64 and 11,608.07

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Solution

The fourth proportional to 20,560.77, 28,373.64 and 11,608.07 is: 16,019.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,560.77 : 28,373.64 = 11,608.07 : x
  2. Step 2: Convert to fraction form
    20,560.77/28,373.64 = 11,608.07/x
  3. Step 3: Cross multiply
    20,560.77x = 28,373.64 × 11,608.07
  4. Step 4: Simplify right side
    20,560.77x = 329,363,057.41
  5. Step 5: Solve for x
    x = 329,363,057.41/20,560.77
  6. Step 6: Final answer
    x = 16,019.00

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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.