Home / 19,670.61-27,143.43-11,055.42

Finding the Fourth Proportional to 19,670.61, 27,143.43 and 11,055.42

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Solution

The fourth proportional to 19,670.61, 27,143.43 and 11,055.42 is: 15,255.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,670.61 : 27,143.43 = 11,055.42 : x
  2. Step 2: Convert to fraction form
    19,670.61/27,143.43 = 11,055.42/x
  3. Step 3: Cross multiply
    19,670.61x = 27,143.43 × 11,055.42
  4. Step 4: Simplify right side
    19,670.61x = 300,082,018.89
  5. Step 5: Solve for x
    x = 300,082,018.89/19,670.61
  6. Step 6: Final answer
    x = 15,255.35

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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.