Home / 28,583.69-39,444.51-15,662.90

Finding the Fourth Proportional to 28,583.69, 39,444.51 and 15,662.90

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Solution

The fourth proportional to 28,583.69, 39,444.51 and 15,662.90 is: 21,614.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,583.69 : 39,444.51 = 15,662.90 : x
  2. Step 2: Convert to fraction form
    28,583.69/39,444.51 = 15,662.90/x
  3. Step 3: Cross multiply
    28,583.69x = 39,444.51 × 15,662.90
  4. Step 4: Simplify right side
    28,583.69x = 617,815,415.68
  5. Step 5: Solve for x
    x = 617,815,415.68/28,583.69
  6. Step 6: Final answer
    x = 21,614.26

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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.