Home / 28,410.55-39,207.24-15,664.59

Finding the Fourth Proportional to 28,410.55, 39,207.24 and 15,664.59

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Solution

The fourth proportional to 28,410.55, 39,207.24 and 15,664.59 is: 21,617.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,410.55 : 39,207.24 = 15,664.59 : x
  2. Step 2: Convert to fraction form
    28,410.55/39,207.24 = 15,664.59/x
  3. Step 3: Cross multiply
    28,410.55x = 39,207.24 × 15,664.59
  4. Step 4: Simplify right side
    28,410.55x = 614,165,339.63
  5. Step 5: Solve for x
    x = 614,165,339.63/28,410.55
  6. Step 6: Final answer
    x = 21,617.51

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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.