Home / 28,617.39-39,494.33-15,874.57

Finding the Fourth Proportional to 28,617.39, 39,494.33 and 15,874.57

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Solution

The fourth proportional to 28,617.39, 39,494.33 and 15,874.57 is: 21,908.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,617.39 : 39,494.33 = 15,874.57 : x
  2. Step 2: Convert to fraction form
    28,617.39/39,494.33 = 15,874.57/x
  3. Step 3: Cross multiply
    28,617.39x = 39,494.33 × 15,874.57
  4. Step 4: Simplify right side
    28,617.39x = 626,955,506.19
  5. Step 5: Solve for x
    x = 626,955,506.19/28,617.39
  6. Step 6: Final answer
    x = 21,908.20

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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.