Home / 27,277.20-37,640.43-15,338.16

Finding the Fourth Proportional to 27,277.20, 37,640.43 and 15,338.16

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Solution

The fourth proportional to 27,277.20, 37,640.43 and 15,338.16 is: 21,165.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,277.20 : 37,640.43 = 15,338.16 : x
  2. Step 2: Convert to fraction form
    27,277.20/37,640.43 = 15,338.16/x
  3. Step 3: Cross multiply
    27,277.20x = 37,640.43 × 15,338.16
  4. Step 4: Simplify right side
    27,277.20x = 577,334,937.81
  5. Step 5: Solve for x
    x = 577,334,937.81/27,277.20
  6. Step 6: Final answer
    x = 21,165.48

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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.