Home / 19,375.35-29,072.63-7,688.31

Finding the Fourth Proportional to 19,375.35, 29,072.63 and 7,688.31

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Solution

The fourth proportional to 19,375.35, 29,072.63 and 7,688.31 is: 11,536.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,375.35 : 29,072.63 = 7,688.31 : x
  2. Step 2: Convert to fraction form
    19,375.35/29,072.63 = 7,688.31/x
  3. Step 3: Cross multiply
    19,375.35x = 29,072.63 × 7,688.31
  4. Step 4: Simplify right side
    19,375.35x = 223,519,353.51
  5. Step 5: Solve for x
    x = 223,519,353.51/19,375.35
  6. Step 6: Final answer
    x = 11,536.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.