Home / 27,651.78-38,160.35-15,554.36

Finding the Fourth Proportional to 27,651.78, 38,160.35 and 15,554.36

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Solution

The fourth proportional to 27,651.78, 38,160.35 and 15,554.36 is: 21,465.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,651.78 : 38,160.35 = 15,554.36 : x
  2. Step 2: Convert to fraction form
    27,651.78/38,160.35 = 15,554.36/x
  3. Step 3: Cross multiply
    27,651.78x = 38,160.35 × 15,554.36
  4. Step 4: Simplify right side
    27,651.78x = 593,559,821.63
  5. Step 5: Solve for x
    x = 593,559,821.63/27,651.78
  6. Step 6: Final answer
    x = 21,465.52

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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.