Home / 21,133.40-31,701.08-11,766.37

Finding the Fourth Proportional to 21,133.40, 31,701.08 and 11,766.37

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Solution

The fourth proportional to 21,133.40, 31,701.08 and 11,766.37 is: 17,650.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,133.40 : 31,701.08 = 11,766.37 : x
  2. Step 2: Convert to fraction form
    21,133.40/31,701.08 = 11,766.37/x
  3. Step 3: Cross multiply
    21,133.40x = 31,701.08 × 11,766.37
  4. Step 4: Simplify right side
    21,133.40x = 373,006,439.16
  5. Step 5: Solve for x
    x = 373,006,439.16/21,133.40
  6. Step 6: Final answer
    x = 17,650.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.