Home / 31,779.24-47,684.35-13,064.90

Finding the Fourth Proportional to 31,779.24, 47,684.35 and 13,064.90

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Solution

The fourth proportional to 31,779.24, 47,684.35 and 13,064.90 is: 19,603.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,779.24 : 47,684.35 = 13,064.90 : x
  2. Step 2: Convert to fraction form
    31,779.24/47,684.35 = 13,064.90/x
  3. Step 3: Cross multiply
    31,779.24x = 47,684.35 × 13,064.90
  4. Step 4: Simplify right side
    31,779.24x = 622,990,968.73
  5. Step 5: Solve for x
    x = 622,990,968.73/31,779.24
  6. Step 6: Final answer
    x = 19,603.71

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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.