Home / 28,185.94-42,284.85-10,655.38

Finding the Fourth Proportional to 28,185.94, 42,284.85 and 10,655.38

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Solution

The fourth proportional to 28,185.94, 42,284.85 and 10,655.38 is: 15,985.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,185.94 : 42,284.85 = 10,655.38 : x
  2. Step 2: Convert to fraction form
    28,185.94/42,284.85 = 10,655.38/x
  3. Step 3: Cross multiply
    28,185.94x = 42,284.85 × 10,655.38
  4. Step 4: Simplify right side
    28,185.94x = 450,561,144.99
  5. Step 5: Solve for x
    x = 450,561,144.99/28,185.94
  6. Step 6: Final answer
    x = 15,985.32

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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.