Home / 23,135.78-31,928.03-13,065.73

Finding the Fourth Proportional to 23,135.78, 31,928.03 and 13,065.73

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Solution

The fourth proportional to 23,135.78, 31,928.03 and 13,065.73 is: 18,031.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,135.78 : 31,928.03 = 13,065.73 : x
  2. Step 2: Convert to fraction form
    23,135.78/31,928.03 = 13,065.73/x
  3. Step 3: Cross multiply
    23,135.78x = 31,928.03 × 13,065.73
  4. Step 4: Simplify right side
    23,135.78x = 417,163,066.57
  5. Step 5: Solve for x
    x = 417,163,066.57/23,135.78
  6. Step 6: Final answer
    x = 18,031.08

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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.