Home / 23,783.10-32,820.64-13,172.72

Finding the Fourth Proportional to 23,783.10, 32,820.64 and 13,172.72

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Solution

The fourth proportional to 23,783.10, 32,820.64 and 13,172.72 is: 18,178.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,783.10 : 32,820.64 = 13,172.72 : x
  2. Step 2: Convert to fraction form
    23,783.10/32,820.64 = 13,172.72/x
  3. Step 3: Cross multiply
    23,783.10x = 32,820.64 × 13,172.72
  4. Step 4: Simplify right side
    23,783.10x = 432,336,903.91
  5. Step 5: Solve for x
    x = 432,336,903.91/23,783.10
  6. Step 6: Final answer
    x = 18,178.33

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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.