Home / 28,649.84-39,537.12-15,903.27

Finding the Fourth Proportional to 28,649.84, 39,537.12 and 15,903.27

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Solution

The fourth proportional to 28,649.84, 39,537.12 and 15,903.27 is: 21,946.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,649.84 : 39,537.12 = 15,903.27 : x
  2. Step 2: Convert to fraction form
    28,649.84/39,537.12 = 15,903.27/x
  3. Step 3: Cross multiply
    28,649.84x = 39,537.12 × 15,903.27
  4. Step 4: Simplify right side
    28,649.84x = 628,769,709.63
  5. Step 5: Solve for x
    x = 628,769,709.63/28,649.84
  6. Step 6: Final answer
    x = 21,946.71

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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.