Home / 20,526.00-28,338.81-15,737.07

Finding the Fourth Proportional to 20,526.00, 28,338.81 and 15,737.07

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Solution

The fourth proportional to 20,526.00, 28,338.81 and 15,737.07 is: 21,727.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,526.00 : 28,338.81 = 15,737.07 : x
  2. Step 2: Convert to fraction form
    20,526.00/28,338.81 = 15,737.07/x
  3. Step 3: Cross multiply
    20,526.00x = 28,338.81 × 15,737.07
  4. Step 4: Simplify right side
    20,526.00x = 445,969,857.32
  5. Step 5: Solve for x
    x = 445,969,857.32/20,526.00
  6. Step 6: Final answer
    x = 21,727.07

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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.