Home / 28,614.16-42,940.28-11,760.99

Finding the Fourth Proportional to 28,614.16, 42,940.28 and 11,760.99

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Solution

The fourth proportional to 28,614.16, 42,940.28 and 11,760.99 is: 17,649.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,614.16 : 42,940.28 = 11,760.99 : x
  2. Step 2: Convert to fraction form
    28,614.16/42,940.28 = 11,760.99/x
  3. Step 3: Cross multiply
    28,614.16x = 42,940.28 × 11,760.99
  4. Step 4: Simplify right side
    28,614.16x = 505,020,203.68
  5. Step 5: Solve for x
    x = 505,020,203.68/28,614.16
  6. Step 6: Final answer
    x = 17,649.31

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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.