Home / 28,338.07-42,509.49-8,616.81

Finding the Fourth Proportional to 28,338.07, 42,509.49 and 8,616.81

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Solution

The fourth proportional to 28,338.07, 42,509.49 and 8,616.81 is: 12,925.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,338.07 : 42,509.49 = 8,616.81 : x
  2. Step 2: Convert to fraction form
    28,338.07/42,509.49 = 8,616.81/x
  3. Step 3: Cross multiply
    28,338.07x = 42,509.49 × 8,616.81
  4. Step 4: Simplify right side
    28,338.07x = 366,296,198.53
  5. Step 5: Solve for x
    x = 366,296,198.53/28,338.07
  6. Step 6: Final answer
    x = 12,925.94

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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.