Home / 36,783.28-55,169.61-11,820.07

Finding the Fourth Proportional to 36,783.28, 55,169.61 and 11,820.07

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Solution

The fourth proportional to 36,783.28, 55,169.61 and 11,820.07 is: 17,728.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,783.28 : 55,169.61 = 11,820.07 : x
  2. Step 2: Convert to fraction form
    36,783.28/55,169.61 = 11,820.07/x
  3. Step 3: Cross multiply
    36,783.28x = 55,169.61 × 11,820.07
  4. Step 4: Simplify right side
    36,783.28x = 652,108,652.07
  5. Step 5: Solve for x
    x = 652,108,652.07/36,783.28
  6. Step 6: Final answer
    x = 17,728.40

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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.