Home / 21,142.44-29,176.57-11,582.67

Finding the Fourth Proportional to 21,142.44, 29,176.57 and 11,582.67

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Solution

The fourth proportional to 21,142.44, 29,176.57 and 11,582.67 is: 15,984.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,142.44 : 29,176.57 = 11,582.67 : x
  2. Step 2: Convert to fraction form
    21,142.44/29,176.57 = 11,582.67/x
  3. Step 3: Cross multiply
    21,142.44x = 29,176.57 × 11,582.67
  4. Step 4: Simplify right side
    21,142.44x = 337,942,509.10
  5. Step 5: Solve for x
    x = 337,942,509.10/21,142.44
  6. Step 6: Final answer
    x = 15,984.08

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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.