Home / 27,605.94-38,093.33-15,507.78

Finding the Fourth Proportional to 27,605.94, 38,093.33 and 15,507.78

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Solution

The fourth proportional to 27,605.94, 38,093.33 and 15,507.78 is: 21,399.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,605.94 : 38,093.33 = 15,507.78 : x
  2. Step 2: Convert to fraction form
    27,605.94/38,093.33 = 15,507.78/x
  3. Step 3: Cross multiply
    27,605.94x = 38,093.33 × 15,507.78
  4. Step 4: Simplify right side
    27,605.94x = 590,742,981.11
  5. Step 5: Solve for x
    x = 590,742,981.11/27,605.94
  6. Step 6: Final answer
    x = 21,399.13

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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.