Home / 40,985.88-61,437.77-15,991.54

Finding the Fourth Proportional to 40,985.88, 61,437.77 and 15,991.54

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Solution

The fourth proportional to 40,985.88, 61,437.77 and 15,991.54 is: 23,971.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,985.88 : 61,437.77 = 15,991.54 : x
  2. Step 2: Convert to fraction form
    40,985.88/61,437.77 = 15,991.54/x
  3. Step 3: Cross multiply
    40,985.88x = 61,437.77 × 15,991.54
  4. Step 4: Simplify right side
    40,985.88x = 982,484,556.47
  5. Step 5: Solve for x
    x = 982,484,556.47/40,985.88
  6. Step 6: Final answer
    x = 23,971.29

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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.