Home / 51,015.39-70,402.43-28,355.33

Finding the Fourth Proportional to 51,015.39, 70,402.43 and 28,355.33

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Solution

The fourth proportional to 51,015.39, 70,402.43 and 28,355.33 is: 39,131.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,015.39 : 70,402.43 = 28,355.33 : x
  2. Step 2: Convert to fraction form
    51,015.39/70,402.43 = 28,355.33/x
  3. Step 3: Cross multiply
    51,015.39x = 70,402.43 × 28,355.33
  4. Step 4: Simplify right side
    51,015.39x = 1,996,284,382.35
  5. Step 5: Solve for x
    x = 1,996,284,382.35/51,015.39
  6. Step 6: Final answer
    x = 39,131.02

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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.