Home / 28,825.20-43,205.40-14,779.80

Finding the Fourth Proportional to 28,825.20, 43,205.40 and 14,779.80

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Solution

The fourth proportional to 28,825.20, 43,205.40 and 14,779.80 is: 22,153.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,825.20 : 43,205.40 = 14,779.80 : x
  2. Step 2: Convert to fraction form
    28,825.20/43,205.40 = 14,779.80/x
  3. Step 3: Cross multiply
    28,825.20x = 43,205.40 × 14,779.80
  4. Step 4: Simplify right side
    28,825.20x = 638,567,170.92
  5. Step 5: Solve for x
    x = 638,567,170.92/28,825.20
  6. Step 6: Final answer
    x = 22,153.09

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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.