Home / 36,938.48-55,405.80-11,978.16

Finding the Fourth Proportional to 36,938.48, 55,405.80 and 11,978.16

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Solution

The fourth proportional to 36,938.48, 55,405.80 and 11,978.16 is: 17,966.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,938.48 : 55,405.80 = 11,978.16 : x
  2. Step 2: Convert to fraction form
    36,938.48/55,405.80 = 11,978.16/x
  3. Step 3: Cross multiply
    36,938.48x = 55,405.80 × 11,978.16
  4. Step 4: Simplify right side
    36,938.48x = 663,659,537.33
  5. Step 5: Solve for x
    x = 663,659,537.33/36,938.48
  6. Step 6: Final answer
    x = 17,966.62

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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.