Home / 30,515.31-42,112.58-17,083.89

Finding the Fourth Proportional to 30,515.31, 42,112.58 and 17,083.89

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Solution

The fourth proportional to 30,515.31, 42,112.58 and 17,083.89 is: 23,576.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,515.31 : 42,112.58 = 17,083.89 : x
  2. Step 2: Convert to fraction form
    30,515.31/42,112.58 = 17,083.89/x
  3. Step 3: Cross multiply
    30,515.31x = 42,112.58 × 17,083.89
  4. Step 4: Simplify right side
    30,515.31x = 719,446,598.92
  5. Step 5: Solve for x
    x = 719,446,598.92/30,515.31
  6. Step 6: Final answer
    x = 23,576.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.