Home / 21,457.40-32,182.62-5,871.38

Finding the Fourth Proportional to 21,457.40, 32,182.62 and 5,871.38

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Solution

The fourth proportional to 21,457.40, 32,182.62 and 5,871.38 is: 8,806.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,457.40 : 32,182.62 = 5,871.38 : x
  2. Step 2: Convert to fraction form
    21,457.40/32,182.62 = 5,871.38/x
  3. Step 3: Cross multiply
    21,457.40x = 32,182.62 × 5,871.38
  4. Step 4: Simplify right side
    21,457.40x = 188,956,230.50
  5. Step 5: Solve for x
    x = 188,956,230.50/21,457.40
  6. Step 6: Final answer
    x = 8,806.11

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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.