Home / 28,537.33-39,390.65-20,041.51

Finding the Fourth Proportional to 28,537.33, 39,390.65 and 20,041.51

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Solution

The fourth proportional to 28,537.33, 39,390.65 and 20,041.51 is: 27,663.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,537.33 : 39,390.65 = 20,041.51 : x
  2. Step 2: Convert to fraction form
    28,537.33/39,390.65 = 20,041.51/x
  3. Step 3: Cross multiply
    28,537.33x = 39,390.65 × 20,041.51
  4. Step 4: Simplify right side
    28,537.33x = 789,448,105.88
  5. Step 5: Solve for x
    x = 789,448,105.88/28,537.33
  6. Step 6: Final answer
    x = 27,663.70

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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.