Home / 27,653.52-38,161.86-15,078.28

Finding the Fourth Proportional to 27,653.52, 38,161.86 and 15,078.28

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Solution

The fourth proportional to 27,653.52, 38,161.86 and 15,078.28 is: 20,808.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,653.52 : 38,161.86 = 15,078.28 : x
  2. Step 2: Convert to fraction form
    27,653.52/38,161.86 = 15,078.28/x
  3. Step 3: Cross multiply
    27,653.52x = 38,161.86 × 15,078.28
  4. Step 4: Simplify right side
    27,653.52x = 575,415,210.40
  5. Step 5: Solve for x
    x = 575,415,210.40/27,653.52
  6. Step 6: Final answer
    x = 20,808.03

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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.