Home / 25,291.72-37,986.81-20,615.19

Finding the Fourth Proportional to 25,291.72, 37,986.81 and 20,615.19

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Solution

The fourth proportional to 25,291.72, 37,986.81 and 20,615.19 is: 30,962.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,291.72 : 37,986.81 = 20,615.19 : x
  2. Step 2: Convert to fraction form
    25,291.72/37,986.81 = 20,615.19/x
  3. Step 3: Cross multiply
    25,291.72x = 37,986.81 × 20,615.19
  4. Step 4: Simplify right side
    25,291.72x = 783,105,305.64
  5. Step 5: Solve for x
    x = 783,105,305.64/25,291.72
  6. Step 6: Final answer
    x = 30,962.91

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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.