Home / 15,697.15-21,661.08-14,443.27

Finding the Fourth Proportional to 15,697.15, 21,661.08 and 14,443.27

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Solution

The fourth proportional to 15,697.15, 21,661.08 and 14,443.27 is: 19,930.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,697.15 : 21,661.08 = 14,443.27 : x
  2. Step 2: Convert to fraction form
    15,697.15/21,661.08 = 14,443.27/x
  3. Step 3: Cross multiply
    15,697.15x = 21,661.08 × 14,443.27
  4. Step 4: Simplify right side
    15,697.15x = 312,856,826.93
  5. Step 5: Solve for x
    x = 312,856,826.93/15,697.15
  6. Step 6: Final answer
    x = 19,930.80

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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.