Home / 27,439.58-37,868.10-15,503.42

Finding the Fourth Proportional to 27,439.58, 37,868.10 and 15,503.42

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Solution

The fourth proportional to 27,439.58, 37,868.10 and 15,503.42 is: 21,395.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,439.58 : 37,868.10 = 15,503.42 : x
  2. Step 2: Convert to fraction form
    27,439.58/37,868.10 = 15,503.42/x
  3. Step 3: Cross multiply
    27,439.58x = 37,868.10 × 15,503.42
  4. Step 4: Simplify right side
    27,439.58x = 587,085,058.90
  5. Step 5: Solve for x
    x = 587,085,058.90/27,439.58
  6. Step 6: Final answer
    x = 21,395.56

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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.