Home / 21,760.55-30,038.74-14,696.54

Finding the Fourth Proportional to 21,760.55, 30,038.74 and 14,696.54

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Solution

The fourth proportional to 21,760.55, 30,038.74 and 14,696.54 is: 20,287.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,760.55 : 30,038.74 = 14,696.54 : x
  2. Step 2: Convert to fraction form
    21,760.55/30,038.74 = 14,696.54/x
  3. Step 3: Cross multiply
    21,760.55x = 30,038.74 × 14,696.54
  4. Step 4: Simplify right side
    21,760.55x = 441,465,357.02
  5. Step 5: Solve for x
    x = 441,465,357.02/21,760.55
  6. Step 6: Final answer
    x = 20,287.42

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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.