Home / 34,695.13-47,879.18-18,779.54

Finding the Fourth Proportional to 34,695.13, 47,879.18 and 18,779.54

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Solution

The fourth proportional to 34,695.13, 47,879.18 and 18,779.54 is: 25,915.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,695.13 : 47,879.18 = 18,779.54 : x
  2. Step 2: Convert to fraction form
    34,695.13/47,879.18 = 18,779.54/x
  3. Step 3: Cross multiply
    34,695.13x = 47,879.18 × 18,779.54
  4. Step 4: Simplify right side
    34,695.13x = 899,148,975.98
  5. Step 5: Solve for x
    x = 899,148,975.98/34,695.13
  6. Step 6: Final answer
    x = 25,915.71

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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.