Home / 21,749.10-32,618.58-10,644.66

Finding the Fourth Proportional to 21,749.10, 32,618.58 and 10,644.66

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Solution

The fourth proportional to 21,749.10, 32,618.58 and 10,644.66 is: 15,964.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,749.10 : 32,618.58 = 10,644.66 : x
  2. Step 2: Convert to fraction form
    21,749.10/32,618.58 = 10,644.66/x
  3. Step 3: Cross multiply
    21,749.10x = 32,618.58 × 10,644.66
  4. Step 4: Simplify right side
    21,749.10x = 347,213,693.78
  5. Step 5: Solve for x
    x = 347,213,693.78/21,749.10
  6. Step 6: Final answer
    x = 15,964.51

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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.