Home / 22,779.26-31,437.81-12,711.19

Finding the Fourth Proportional to 22,779.26, 31,437.81 and 12,711.19

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Solution

The fourth proportional to 22,779.26, 31,437.81 and 12,711.19 is: 17,542.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,779.26 : 31,437.81 = 12,711.19 : x
  2. Step 2: Convert to fraction form
    22,779.26/31,437.81 = 12,711.19/x
  3. Step 3: Cross multiply
    22,779.26x = 31,437.81 × 12,711.19
  4. Step 4: Simplify right side
    22,779.26x = 399,611,912.54
  5. Step 5: Solve for x
    x = 399,611,912.54/22,779.26
  6. Step 6: Final answer
    x = 17,542.80

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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.