Home / 42,556.05-63,806.67-20,368.89

Finding the Fourth Proportional to 42,556.05, 63,806.67 and 20,368.89

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Solution

The fourth proportional to 42,556.05, 63,806.67 and 20,368.89 is: 30,540.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,556.05 : 63,806.67 = 20,368.89 : x
  2. Step 2: Convert to fraction form
    42,556.05/63,806.67 = 20,368.89/x
  3. Step 3: Cross multiply
    42,556.05x = 63,806.67 × 20,368.89
  4. Step 4: Simplify right side
    42,556.05x = 1,299,671,042.50
  5. Step 5: Solve for x
    x = 1,299,671,042.50/42,556.05
  6. Step 6: Final answer
    x = 30,540.22

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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.