Home / 36,998.40-55,448.32-13,603.20

Finding the Fourth Proportional to 36,998.40, 55,448.32 and 13,603.20

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Solution

The fourth proportional to 36,998.40, 55,448.32 and 13,603.20 is: 20,386.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,998.40 : 55,448.32 = 13,603.20 : x
  2. Step 2: Convert to fraction form
    36,998.40/55,448.32 = 13,603.20/x
  3. Step 3: Cross multiply
    36,998.40x = 55,448.32 × 13,603.20
  4. Step 4: Simplify right side
    36,998.40x = 754,274,586.62
  5. Step 5: Solve for x
    x = 754,274,586.62/36,998.40
  6. Step 6: Final answer
    x = 20,386.68

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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.