Home / 36,642.72-54,987.84-13,267.20

Finding the Fourth Proportional to 36,642.72, 54,987.84 and 13,267.20

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Solution

The fourth proportional to 36,642.72, 54,987.84 and 13,267.20 is: 19,909.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,642.72 : 54,987.84 = 13,267.20 : x
  2. Step 2: Convert to fraction form
    36,642.72/54,987.84 = 13,267.20/x
  3. Step 3: Cross multiply
    36,642.72x = 54,987.84 × 13,267.20
  4. Step 4: Simplify right side
    36,642.72x = 729,534,670.85
  5. Step 5: Solve for x
    x = 729,534,670.85/36,642.72
  6. Step 6: Final answer
    x = 19,909.40

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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.