Home / 15,980.13-23,971.31-4,885.97

Finding the Fourth Proportional to 15,980.13, 23,971.31 and 4,885.97

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Solution

The fourth proportional to 15,980.13, 23,971.31 and 4,885.97 is: 7,329.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,980.13 : 23,971.31 = 4,885.97 : x
  2. Step 2: Convert to fraction form
    15,980.13/23,971.31 = 4,885.97/x
  3. Step 3: Cross multiply
    15,980.13x = 23,971.31 × 4,885.97
  4. Step 4: Simplify right side
    15,980.13x = 117,122,957.23
  5. Step 5: Solve for x
    x = 117,122,957.23/15,980.13
  6. Step 6: Final answer
    x = 7,329.29

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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.