Home / 30,165.14-45,262.80-13,537.06

Finding the Fourth Proportional to 30,165.14, 45,262.80 and 13,537.06

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Solution

The fourth proportional to 30,165.14, 45,262.80 and 13,537.06 is: 20,312.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,165.14 : 45,262.80 = 13,537.06 : x
  2. Step 2: Convert to fraction form
    30,165.14/45,262.80 = 13,537.06/x
  3. Step 3: Cross multiply
    30,165.14x = 45,262.80 × 13,537.06
  4. Step 4: Simplify right side
    30,165.14x = 612,725,239.37
  5. Step 5: Solve for x
    x = 612,725,239.37/30,165.14
  6. Step 6: Final answer
    x = 20,312.36

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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.