Home / 20,261.45-27,958.04-11,307.81

Finding the Fourth Proportional to 20,261.45, 27,958.04 and 11,307.81

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Solution

The fourth proportional to 20,261.45, 27,958.04 and 11,307.81 is: 15,603.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,261.45 : 27,958.04 = 11,307.81 : x
  2. Step 2: Convert to fraction form
    20,261.45/27,958.04 = 11,307.81/x
  3. Step 3: Cross multiply
    20,261.45x = 27,958.04 × 11,307.81
  4. Step 4: Simplify right side
    20,261.45x = 316,144,204.29
  5. Step 5: Solve for x
    x = 316,144,204.29/20,261.45
  6. Step 6: Final answer
    x = 15,603.24

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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.