Home / 28,469.52-42,704.28-14,427.36

Finding the Fourth Proportional to 28,469.52, 42,704.28 and 14,427.36

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Solution

The fourth proportional to 28,469.52, 42,704.28 and 14,427.36 is: 21,641.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,469.52 : 42,704.28 = 14,427.36 : x
  2. Step 2: Convert to fraction form
    28,469.52/42,704.28 = 14,427.36/x
  3. Step 3: Cross multiply
    28,469.52x = 42,704.28 × 14,427.36
  4. Step 4: Simplify right side
    28,469.52x = 616,110,021.10
  5. Step 5: Solve for x
    x = 616,110,021.10/28,469.52
  6. Step 6: Final answer
    x = 21,641.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.