Home / 31,266.88-46,896.36-8,779.60

Finding the Fourth Proportional to 31,266.88, 46,896.36 and 8,779.60

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Solution

The fourth proportional to 31,266.88, 46,896.36 and 8,779.60 is: 13,168.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,266.88 : 46,896.36 = 8,779.60 : x
  2. Step 2: Convert to fraction form
    31,266.88/46,896.36 = 8,779.60/x
  3. Step 3: Cross multiply
    31,266.88x = 46,896.36 × 8,779.60
  4. Step 4: Simplify right side
    31,266.88x = 411,731,282.26
  5. Step 5: Solve for x
    x = 411,731,282.26/31,266.88
  6. Step 6: Final answer
    x = 13,168.29

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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.