Home / 28,453.07-42,684.22-10,685.12

Finding the Fourth Proportional to 28,453.07, 42,684.22 and 10,685.12

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Solution

The fourth proportional to 28,453.07, 42,684.22 and 10,685.12 is: 16,029.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,453.07 : 42,684.22 = 10,685.12 : x
  2. Step 2: Convert to fraction form
    28,453.07/42,684.22 = 10,685.12/x
  3. Step 3: Cross multiply
    28,453.07x = 42,684.22 × 10,685.12
  4. Step 4: Simplify right side
    28,453.07x = 456,085,752.64
  5. Step 5: Solve for x
    x = 456,085,752.64/28,453.07
  6. Step 6: Final answer
    x = 16,029.40

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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.