Home / 27,835.40-38,408.64-15,896.54

Finding the Fourth Proportional to 27,835.40, 38,408.64 and 15,896.54

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Solution

The fourth proportional to 27,835.40, 38,408.64 and 15,896.54 is: 21,934.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,835.40 : 38,408.64 = 15,896.54 : x
  2. Step 2: Convert to fraction form
    27,835.40/38,408.64 = 15,896.54/x
  3. Step 3: Cross multiply
    27,835.40x = 38,408.64 × 15,896.54
  4. Step 4: Simplify right side
    27,835.40x = 610,564,482.11
  5. Step 5: Solve for x
    x = 610,564,482.11/27,835.40
  6. Step 6: Final answer
    x = 21,934.82

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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.