Home / 28,940.40-43,386.30-15,089.40

Finding the Fourth Proportional to 28,940.40, 43,386.30 and 15,089.40

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Solution

The fourth proportional to 28,940.40, 43,386.30 and 15,089.40 is: 22,621.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,940.40 : 43,386.30 = 15,089.40 : x
  2. Step 2: Convert to fraction form
    28,940.40/43,386.30 = 15,089.40/x
  3. Step 3: Cross multiply
    28,940.40x = 43,386.30 × 15,089.40
  4. Step 4: Simplify right side
    28,940.40x = 654,673,235.22
  5. Step 5: Solve for x
    x = 654,673,235.22/28,940.40
  6. Step 6: Final answer
    x = 22,621.43

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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.