Home / 19,648.24-27,128.15-18,393.45

Finding the Fourth Proportional to 19,648.24, 27,128.15 and 18,393.45

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Solution

The fourth proportional to 19,648.24, 27,128.15 and 18,393.45 is: 25,395.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,648.24 : 27,128.15 = 18,393.45 : x
  2. Step 2: Convert to fraction form
    19,648.24/27,128.15 = 18,393.45/x
  3. Step 3: Cross multiply
    19,648.24x = 27,128.15 × 18,393.45
  4. Step 4: Simplify right side
    19,648.24x = 498,980,270.62
  5. Step 5: Solve for x
    x = 498,980,270.62/19,648.24
  6. Step 6: Final answer
    x = 25,395.67

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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.