Home / 36,648.64-54,981.06-13,276.90

Finding the Fourth Proportional to 36,648.64, 54,981.06 and 13,276.90

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Solution

The fourth proportional to 36,648.64, 54,981.06 and 13,276.90 is: 19,918.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,648.64 : 54,981.06 = 13,276.90 : x
  2. Step 2: Convert to fraction form
    36,648.64/54,981.06 = 13,276.90/x
  3. Step 3: Cross multiply
    36,648.64x = 54,981.06 × 13,276.90
  4. Step 4: Simplify right side
    36,648.64x = 729,978,035.51
  5. Step 5: Solve for x
    x = 729,978,035.51/36,648.64
  6. Step 6: Final answer
    x = 19,918.28

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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.