Home / 34,779.66-47,979.99-20,627.34

Finding the Fourth Proportional to 34,779.66, 47,979.99 and 20,627.34

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Solution

The fourth proportional to 34,779.66, 47,979.99 and 20,627.34 is: 28,456.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,779.66 : 47,979.99 = 20,627.34 : x
  2. Step 2: Convert to fraction form
    34,779.66/47,979.99 = 20,627.34/x
  3. Step 3: Cross multiply
    34,779.66x = 47,979.99 × 20,627.34
  4. Step 4: Simplify right side
    34,779.66x = 989,699,566.93
  5. Step 5: Solve for x
    x = 989,699,566.93/34,779.66
  6. Step 6: Final answer
    x = 28,456.27

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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.