Home / 47,399.13-71,111.88-20,740.37

Finding the Fourth Proportional to 47,399.13, 71,111.88 and 20,740.37

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Solution

The fourth proportional to 47,399.13, 71,111.88 and 20,740.37 is: 31,116.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,399.13 : 71,111.88 = 20,740.37 : x
  2. Step 2: Convert to fraction form
    47,399.13/71,111.88 = 20,740.37/x
  3. Step 3: Cross multiply
    47,399.13x = 71,111.88 × 20,740.37
  4. Step 4: Simplify right side
    47,399.13x = 1,474,886,347.04
  5. Step 5: Solve for x
    x = 1,474,886,347.04/47,399.13
  6. Step 6: Final answer
    x = 31,116.32

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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.