Home / 28,000.26-42,006.06-8,278.38

Finding the Fourth Proportional to 28,000.26, 42,006.06 and 8,278.38

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Solution

The fourth proportional to 28,000.26, 42,006.06 and 8,278.38 is: 12,419.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,000.26 : 42,006.06 = 8,278.38 : x
  2. Step 2: Convert to fraction form
    28,000.26/42,006.06 = 8,278.38/x
  3. Step 3: Cross multiply
    28,000.26x = 42,006.06 × 8,278.38
  4. Step 4: Simplify right side
    28,000.26x = 347,742,126.98
  5. Step 5: Solve for x
    x = 347,742,126.98/28,000.26
  6. Step 6: Final answer
    x = 12,419.25

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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.