Home / 28,494.09-39,321.63-15,748.13

Finding the Fourth Proportional to 28,494.09, 39,321.63 and 15,748.13

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Solution

The fourth proportional to 28,494.09, 39,321.63 and 15,748.13 is: 21,732.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,494.09 : 39,321.63 = 15,748.13 : x
  2. Step 2: Convert to fraction form
    28,494.09/39,321.63 = 15,748.13/x
  3. Step 3: Cross multiply
    28,494.09x = 39,321.63 × 15,748.13
  4. Step 4: Simplify right side
    28,494.09x = 619,242,239.36
  5. Step 5: Solve for x
    x = 619,242,239.36/28,494.09
  6. Step 6: Final answer
    x = 21,732.30

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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.