Home / 27,820.11-38,370.81-19,322.24

Finding the Fourth Proportional to 27,820.11, 38,370.81 and 19,322.24

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Solution

The fourth proportional to 27,820.11, 38,370.81 and 19,322.24 is: 26,650.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,820.11 : 38,370.81 = 19,322.24 : x
  2. Step 2: Convert to fraction form
    27,820.11/38,370.81 = 19,322.24/x
  3. Step 3: Cross multiply
    27,820.11x = 38,370.81 × 19,322.24
  4. Step 4: Simplify right side
    27,820.11x = 741,410,095.74
  5. Step 5: Solve for x
    x = 741,410,095.74/27,820.11
  6. Step 6: Final answer
    x = 26,650.15

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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.