Home / 27,804.27-38,370.54-15,868.72

Finding the Fourth Proportional to 27,804.27, 38,370.54 and 15,868.72

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Solution

The fourth proportional to 27,804.27, 38,370.54 and 15,868.72 is: 21,899.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,804.27 : 38,370.54 = 15,868.72 : x
  2. Step 2: Convert to fraction form
    27,804.27/38,370.54 = 15,868.72/x
  3. Step 3: Cross multiply
    27,804.27x = 38,370.54 × 15,868.72
  4. Step 4: Simplify right side
    27,804.27x = 608,891,355.51
  5. Step 5: Solve for x
    x = 608,891,355.51/27,804.27
  6. Step 6: Final answer
    x = 21,899.20

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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.