Home / 37,474.31-51,712.91-20,478.28

Finding the Fourth Proportional to 37,474.31, 51,712.91 and 20,478.28

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Solution

The fourth proportional to 37,474.31, 51,712.91 and 20,478.28 is: 28,259.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,474.31 : 51,712.91 = 20,478.28 : x
  2. Step 2: Convert to fraction form
    37,474.31/51,712.91 = 20,478.28/x
  3. Step 3: Cross multiply
    37,474.31x = 51,712.91 × 20,478.28
  4. Step 4: Simplify right side
    37,474.31x = 1,058,991,192.03
  5. Step 5: Solve for x
    x = 1,058,991,192.03/37,474.31
  6. Step 6: Final answer
    x = 28,259.13

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.