Home / 28,536.82-42,817.50-15,386.12

Finding the Fourth Proportional to 28,536.82, 42,817.50 and 15,386.12

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Solution

The fourth proportional to 28,536.82, 42,817.50 and 15,386.12 is: 23,085.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,536.82 : 42,817.50 = 15,386.12 : x
  2. Step 2: Convert to fraction form
    28,536.82/42,817.50 = 15,386.12/x
  3. Step 3: Cross multiply
    28,536.82x = 42,817.50 × 15,386.12
  4. Step 4: Simplify right side
    28,536.82x = 658,795,193.10
  5. Step 5: Solve for x
    x = 658,795,193.10/28,536.82
  6. Step 6: Final answer
    x = 23,085.80

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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.