Home / 28,555.75-39,424.22-18,637.03

Finding the Fourth Proportional to 28,555.75, 39,424.22 and 18,637.03

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Solution

The fourth proportional to 28,555.75, 39,424.22 and 18,637.03 is: 25,730.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,555.75 : 39,424.22 = 18,637.03 : x
  2. Step 2: Convert to fraction form
    28,555.75/39,424.22 = 18,637.03/x
  3. Step 3: Cross multiply
    28,555.75x = 39,424.22 × 18,637.03
  4. Step 4: Simplify right side
    28,555.75x = 734,750,370.87
  5. Step 5: Solve for x
    x = 734,750,370.87/28,555.75
  6. Step 6: Final answer
    x = 25,730.38

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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.