Home / 27,913.48-38,520.58-15,338.22

Finding the Fourth Proportional to 27,913.48, 38,520.58 and 15,338.22

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Solution

The fourth proportional to 27,913.48, 38,520.58 and 15,338.22 is: 21,166.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,913.48 : 38,520.58 = 15,338.22 : x
  2. Step 2: Convert to fraction form
    27,913.48/38,520.58 = 15,338.22/x
  3. Step 3: Cross multiply
    27,913.48x = 38,520.58 × 15,338.22
  4. Step 4: Simplify right side
    27,913.48x = 590,837,130.57
  5. Step 5: Solve for x
    x = 590,837,130.57/27,913.48
  6. Step 6: Final answer
    x = 21,166.73

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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.