Home / 19,021.32-26,241.36-12,735.72

Finding the Fourth Proportional to 19,021.32, 26,241.36 and 12,735.72

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Solution

The fourth proportional to 19,021.32, 26,241.36 and 12,735.72 is: 17,569.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,021.32 : 26,241.36 = 12,735.72 : x
  2. Step 2: Convert to fraction form
    19,021.32/26,241.36 = 12,735.72/x
  3. Step 3: Cross multiply
    19,021.32x = 26,241.36 × 12,735.72
  4. Step 4: Simplify right side
    19,021.32x = 334,202,613.38
  5. Step 5: Solve for x
    x = 334,202,613.38/19,021.32
  6. Step 6: Final answer
    x = 17,569.90

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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.