Home / 32,421.36-44,749.96-21,121.88

Finding the Fourth Proportional to 32,421.36, 44,749.96 and 21,121.88

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Solution

The fourth proportional to 32,421.36, 44,749.96 and 21,121.88 is: 29,153.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,421.36 : 44,749.96 = 21,121.88 : x
  2. Step 2: Convert to fraction form
    32,421.36/44,749.96 = 21,121.88/x
  3. Step 3: Cross multiply
    32,421.36x = 44,749.96 × 21,121.88
  4. Step 4: Simplify right side
    32,421.36x = 945,203,285.12
  5. Step 5: Solve for x
    x = 945,203,285.12/32,421.36
  6. Step 6: Final answer
    x = 29,153.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.