Home / 22,532.08-31,081.80-13,099.60

Finding the Fourth Proportional to 22,532.08, 31,081.80 and 13,099.60

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Solution

The fourth proportional to 22,532.08, 31,081.80 and 13,099.60 is: 18,070.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,532.08 : 31,081.80 = 13,099.60 : x
  2. Step 2: Convert to fraction form
    22,532.08/31,081.80 = 13,099.60/x
  3. Step 3: Cross multiply
    22,532.08x = 31,081.80 × 13,099.60
  4. Step 4: Simplify right side
    22,532.08x = 407,159,147.28
  5. Step 5: Solve for x
    x = 407,159,147.28/22,532.08
  6. Step 6: Final answer
    x = 18,070.20

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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.