Home / 19,421.78-26,801.21-10,923.75

Finding the Fourth Proportional to 19,421.78, 26,801.21 and 10,923.75

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Solution

The fourth proportional to 19,421.78, 26,801.21 and 10,923.75 is: 15,074.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,421.78 : 26,801.21 = 10,923.75 : x
  2. Step 2: Convert to fraction form
    19,421.78/26,801.21 = 10,923.75/x
  3. Step 3: Cross multiply
    19,421.78x = 26,801.21 × 10,923.75
  4. Step 4: Simplify right side
    19,421.78x = 292,769,745.05
  5. Step 5: Solve for x
    x = 292,769,745.05/19,421.78
  6. Step 6: Final answer
    x = 15,074.30

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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.