Home / 28,824.39-39,777.68-15,576.39

Finding the Fourth Proportional to 28,824.39, 39,777.68 and 15,576.39

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Solution

The fourth proportional to 28,824.39, 39,777.68 and 15,576.39 is: 21,495.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,824.39 : 39,777.68 = 15,576.39 : x
  2. Step 2: Convert to fraction form
    28,824.39/39,777.68 = 15,576.39/x
  3. Step 3: Cross multiply
    28,824.39x = 39,777.68 × 15,576.39
  4. Step 4: Simplify right side
    28,824.39x = 619,592,579.09
  5. Step 5: Solve for x
    x = 619,592,579.09/28,824.39
  6. Step 6: Final answer
    x = 21,495.43

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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.