Home / 15,290.10-22,938.61-5,429.38

Finding the Fourth Proportional to 15,290.10, 22,938.61 and 5,429.38

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Solution

The fourth proportional to 15,290.10, 22,938.61 and 5,429.38 is: 8,145.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,290.10 : 22,938.61 = 5,429.38 : x
  2. Step 2: Convert to fraction form
    15,290.10/22,938.61 = 5,429.38/x
  3. Step 3: Cross multiply
    15,290.10x = 22,938.61 × 5,429.38
  4. Step 4: Simplify right side
    15,290.10x = 124,542,430.36
  5. Step 5: Solve for x
    x = 124,542,430.36/15,290.10
  6. Step 6: Final answer
    x = 8,145.30

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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.