Home / 28,779.60-43,169.40-13,227.60

Finding the Fourth Proportional to 28,779.60, 43,169.40 and 13,227.60

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Solution

The fourth proportional to 28,779.60, 43,169.40 and 13,227.60 is: 19,841.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,779.60 : 43,169.40 = 13,227.60 : x
  2. Step 2: Convert to fraction form
    28,779.60/43,169.40 = 13,227.60/x
  3. Step 3: Cross multiply
    28,779.60x = 43,169.40 × 13,227.60
  4. Step 4: Simplify right side
    28,779.60x = 571,027,555.44
  5. Step 5: Solve for x
    x = 571,027,555.44/28,779.60
  6. Step 6: Final answer
    x = 19,841.40

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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.