Home / 21,292.43-29,384.46-11,860.99

Finding the Fourth Proportional to 21,292.43, 29,384.46 and 11,860.99

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Solution

The fourth proportional to 21,292.43, 29,384.46 and 11,860.99 is: 16,368.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,292.43 : 29,384.46 = 11,860.99 : x
  2. Step 2: Convert to fraction form
    21,292.43/29,384.46 = 11,860.99/x
  3. Step 3: Cross multiply
    21,292.43x = 29,384.46 × 11,860.99
  4. Step 4: Simplify right side
    21,292.43x = 348,528,786.22
  5. Step 5: Solve for x
    x = 348,528,786.22/21,292.43
  6. Step 6: Final answer
    x = 16,368.67

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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.