Home / 28,184.38-42,261.93-12,382.94

Finding the Fourth Proportional to 28,184.38, 42,261.93 and 12,382.94

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Solution

The fourth proportional to 28,184.38, 42,261.93 and 12,382.94 is: 18,567.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,184.38 : 42,261.93 = 12,382.94 : x
  2. Step 2: Convert to fraction form
    28,184.38/42,261.93 = 12,382.94/x
  3. Step 3: Cross multiply
    28,184.38x = 42,261.93 × 12,382.94
  4. Step 4: Simplify right side
    28,184.38x = 523,326,943.47
  5. Step 5: Solve for x
    x = 523,326,943.47/28,184.38
  6. Step 6: Final answer
    x = 18,567.98

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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.