Home / 28,072.16-42,110.48-16,386.56

Finding the Fourth Proportional to 28,072.16, 42,110.48 and 16,386.56

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Solution

The fourth proportional to 28,072.16, 42,110.48 and 16,386.56 is: 24,581.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,072.16 : 42,110.48 = 16,386.56 : x
  2. Step 2: Convert to fraction form
    28,072.16/42,110.48 = 16,386.56/x
  3. Step 3: Cross multiply
    28,072.16x = 42,110.48 × 16,386.56
  4. Step 4: Simplify right side
    28,072.16x = 690,045,907.15
  5. Step 5: Solve for x
    x = 690,045,907.15/28,072.16
  6. Step 6: Final answer
    x = 24,581.15

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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.