Home / 19,931.36-27,506.46-11,433.42

Finding the Fourth Proportional to 19,931.36, 27,506.46 and 11,433.42

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Solution

The fourth proportional to 19,931.36, 27,506.46 and 11,433.42 is: 15,778.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,931.36 : 27,506.46 = 11,433.42 : x
  2. Step 2: Convert to fraction form
    19,931.36/27,506.46 = 11,433.42/x
  3. Step 3: Cross multiply
    19,931.36x = 27,506.46 × 11,433.42
  4. Step 4: Simplify right side
    19,931.36x = 314,492,852.73
  5. Step 5: Solve for x
    x = 314,492,852.73/19,931.36
  6. Step 6: Final answer
    x = 15,778.80

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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.