Home / 28,857.18-43,280.29-10,132.81

Finding the Fourth Proportional to 28,857.18, 43,280.29 and 10,132.81

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Solution

The fourth proportional to 28,857.18, 43,280.29 and 10,132.81 is: 15,197.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,857.18 : 43,280.29 = 10,132.81 : x
  2. Step 2: Convert to fraction form
    28,857.18/43,280.29 = 10,132.81/x
  3. Step 3: Cross multiply
    28,857.18x = 43,280.29 × 10,132.81
  4. Step 4: Simplify right side
    28,857.18x = 438,550,955.31
  5. Step 5: Solve for x
    x = 438,550,955.31/28,857.18
  6. Step 6: Final answer
    x = 15,197.29

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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.