Home / 28,535.97-42,803.64-8,812.29

Finding the Fourth Proportional to 28,535.97, 42,803.64 and 8,812.29

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Solution

The fourth proportional to 28,535.97, 42,803.64 and 8,812.29 is: 13,218.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,535.97 : 42,803.64 = 8,812.29 : x
  2. Step 2: Convert to fraction form
    28,535.97/42,803.64 = 8,812.29/x
  3. Step 3: Cross multiply
    28,535.97x = 42,803.64 × 8,812.29
  4. Step 4: Simplify right side
    28,535.97x = 377,198,088.74
  5. Step 5: Solve for x
    x = 377,198,088.74/28,535.97
  6. Step 6: Final answer
    x = 13,218.34

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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.