Home / 23,101.35-31,880.34-13,548.57

Finding the Fourth Proportional to 23,101.35, 31,880.34 and 13,548.57

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Solution

The fourth proportional to 23,101.35, 31,880.34 and 13,548.57 is: 18,697.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,101.35 : 31,880.34 = 13,548.57 : x
  2. Step 2: Convert to fraction form
    23,101.35/31,880.34 = 13,548.57/x
  3. Step 3: Cross multiply
    23,101.35x = 31,880.34 × 13,548.57
  4. Step 4: Simplify right side
    23,101.35x = 431,933,018.11
  5. Step 5: Solve for x
    x = 431,933,018.11/23,101.35
  6. Step 6: Final answer
    x = 18,697.31

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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.