Home / 28,343.24-42,495.64-15,871.84

Finding the Fourth Proportional to 28,343.24, 42,495.64 and 15,871.84

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Solution

The fourth proportional to 28,343.24, 42,495.64 and 15,871.84 is: 23,797.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,343.24 : 42,495.64 = 15,871.84 : x
  2. Step 2: Convert to fraction form
    28,343.24/42,495.64 = 15,871.84/x
  3. Step 3: Cross multiply
    28,343.24x = 42,495.64 × 15,871.84
  4. Step 4: Simplify right side
    28,343.24x = 674,483,998.78
  5. Step 5: Solve for x
    x = 674,483,998.78/28,343.24
  6. Step 6: Final answer
    x = 23,797.00

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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.