Home / 28,856.18-43,278.80-10,131.81

Finding the Fourth Proportional to 28,856.18, 43,278.80 and 10,131.81

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Solution

The fourth proportional to 28,856.18, 43,278.80 and 10,131.81 is: 15,195.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,856.18 : 43,278.80 = 10,131.81 : x
  2. Step 2: Convert to fraction form
    28,856.18/43,278.80 = 10,131.81/x
  3. Step 3: Cross multiply
    28,856.18x = 43,278.80 × 10,131.81
  4. Step 4: Simplify right side
    28,856.18x = 438,492,527.97
  5. Step 5: Solve for x
    x = 438,492,527.97/28,856.18
  6. Step 6: Final answer
    x = 15,195.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.