Home / 21,424.31-32,157.25-10,338.81

Finding the Fourth Proportional to 21,424.31, 32,157.25 and 10,338.81

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Solution

The fourth proportional to 21,424.31, 32,157.25 and 10,338.81 is: 15,518.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,424.31 : 32,157.25 = 10,338.81 : x
  2. Step 2: Convert to fraction form
    21,424.31/32,157.25 = 10,338.81/x
  3. Step 3: Cross multiply
    21,424.31x = 32,157.25 × 10,338.81
  4. Step 4: Simplify right side
    21,424.31x = 332,467,609.59
  5. Step 5: Solve for x
    x = 332,467,609.59/21,424.31
  6. Step 6: Final answer
    x = 15,518.24

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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.