Home / 30,381.47-45,540.93-11,656.52

Finding the Fourth Proportional to 30,381.47, 45,540.93 and 11,656.52

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Solution

The fourth proportional to 30,381.47, 45,540.93 and 11,656.52 is: 17,472.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,381.47 : 45,540.93 = 11,656.52 : x
  2. Step 2: Convert to fraction form
    30,381.47/45,540.93 = 11,656.52/x
  3. Step 3: Cross multiply
    30,381.47x = 45,540.93 × 11,656.52
  4. Step 4: Simplify right side
    30,381.47x = 530,848,761.36
  5. Step 5: Solve for x
    x = 530,848,761.36/30,381.47
  6. Step 6: Final answer
    x = 17,472.78

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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.