Home / 28,731.68-39,627.23-19,662.41

Finding the Fourth Proportional to 28,731.68, 39,627.23 and 19,662.41

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Solution

The fourth proportional to 28,731.68, 39,627.23 and 19,662.41 is: 27,118.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,731.68 : 39,627.23 = 19,662.41 : x
  2. Step 2: Convert to fraction form
    28,731.68/39,627.23 = 19,662.41/x
  3. Step 3: Cross multiply
    28,731.68x = 39,627.23 × 19,662.41
  4. Step 4: Simplify right side
    28,731.68x = 779,166,844.18
  5. Step 5: Solve for x
    x = 779,166,844.18/28,731.68
  6. Step 6: Final answer
    x = 27,118.74

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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.