Home / 28,402.31-42,609.63-10,872.14

Finding the Fourth Proportional to 28,402.31, 42,609.63 and 10,872.14

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Solution

The fourth proportional to 28,402.31, 42,609.63 and 10,872.14 is: 16,310.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,402.31 : 42,609.63 = 10,872.14 : x
  2. Step 2: Convert to fraction form
    28,402.31/42,609.63 = 10,872.14/x
  3. Step 3: Cross multiply
    28,402.31x = 42,609.63 × 10,872.14
  4. Step 4: Simplify right side
    28,402.31x = 463,257,868.95
  5. Step 5: Solve for x
    x = 463,257,868.95/28,402.31
  6. Step 6: Final answer
    x = 16,310.57

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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.