Home / 15,691.40-23,622.59-13,548.68

Finding the Fourth Proportional to 15,691.40, 23,622.59 and 13,548.68

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Solution

The fourth proportional to 15,691.40, 23,622.59 and 13,548.68 is: 20,396.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,691.40 : 23,622.59 = 13,548.68 : x
  2. Step 2: Convert to fraction form
    15,691.40/23,622.59 = 13,548.68/x
  3. Step 3: Cross multiply
    15,691.40x = 23,622.59 × 13,548.68
  4. Step 4: Simplify right side
    15,691.40x = 320,054,912.68
  5. Step 5: Solve for x
    x = 320,054,912.68/15,691.40
  6. Step 6: Final answer
    x = 20,396.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.