Home / 21,273.34-29,358.93-11,842.60

Finding the Fourth Proportional to 21,273.34, 29,358.93 and 11,842.60

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Solution

The fourth proportional to 21,273.34, 29,358.93 and 11,842.60 is: 16,343.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,273.34 : 29,358.93 = 11,842.60 : x
  2. Step 2: Convert to fraction form
    21,273.34/29,358.93 = 11,842.60/x
  3. Step 3: Cross multiply
    21,273.34x = 29,358.93 × 11,842.60
  4. Step 4: Simplify right side
    21,273.34x = 347,686,064.42
  5. Step 5: Solve for x
    x = 347,686,064.42/21,273.34
  6. Step 6: Final answer
    x = 16,343.75

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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.