Home / 21,516.91-32,059.10-20,308.29

Finding the Fourth Proportional to 21,516.91, 32,059.10 and 20,308.29

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Solution

The fourth proportional to 21,516.91, 32,059.10 and 20,308.29 is: 30,258.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,516.91 : 32,059.10 = 20,308.29 : x
  2. Step 2: Convert to fraction form
    21,516.91/32,059.10 = 20,308.29/x
  3. Step 3: Cross multiply
    21,516.91x = 32,059.10 × 20,308.29
  4. Step 4: Simplify right side
    21,516.91x = 651,065,643.87
  5. Step 5: Solve for x
    x = 651,065,643.87/21,516.91
  6. Step 6: Final answer
    x = 30,258.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.