Home / 28,334.28-39,112.83-18,263.28

Finding the Fourth Proportional to 28,334.28, 39,112.83 and 18,263.28

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Solution

The fourth proportional to 28,334.28, 39,112.83 and 18,263.28 is: 25,210.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,334.28 : 39,112.83 = 18,263.28 : x
  2. Step 2: Convert to fraction form
    28,334.28/39,112.83 = 18,263.28/x
  3. Step 3: Cross multiply
    28,334.28x = 39,112.83 × 18,263.28
  4. Step 4: Simplify right side
    28,334.28x = 714,328,565.88
  5. Step 5: Solve for x
    x = 714,328,565.88/28,334.28
  6. Step 6: Final answer
    x = 25,210.75

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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.