Home / 28,779.71-43,178.18-17,394.32

Finding the Fourth Proportional to 28,779.71, 43,178.18 and 17,394.32

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Solution

The fourth proportional to 28,779.71, 43,178.18 and 17,394.32 is: 26,096.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,779.71 : 43,178.18 = 17,394.32 : x
  2. Step 2: Convert to fraction form
    28,779.71/43,178.18 = 17,394.32/x
  3. Step 3: Cross multiply
    28,779.71x = 43,178.18 × 17,394.32
  4. Step 4: Simplify right side
    28,779.71x = 751,055,100.91
  5. Step 5: Solve for x
    x = 751,055,100.91/28,779.71
  6. Step 6: Final answer
    x = 26,096.69

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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.