Home / 21,504.64-32,106.40-20,186.24

Finding the Fourth Proportional to 21,504.64, 32,106.40 and 20,186.24

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Solution

The fourth proportional to 21,504.64, 32,106.40 and 20,186.24 is: 30,138.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,504.64 : 32,106.40 = 20,186.24 : x
  2. Step 2: Convert to fraction form
    21,504.64/32,106.40 = 20,186.24/x
  3. Step 3: Cross multiply
    21,504.64x = 32,106.40 × 20,186.24
  4. Step 4: Simplify right side
    21,504.64x = 648,107,495.94
  5. Step 5: Solve for x
    x = 648,107,495.94/21,504.64
  6. Step 6: Final answer
    x = 30,138.03

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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.