Home / 30,983.07-42,753.17-17,551.45

Finding the Fourth Proportional to 30,983.07, 42,753.17 and 17,551.45

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Solution

The fourth proportional to 30,983.07, 42,753.17 and 17,551.45 is: 24,219.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,983.07 : 42,753.17 = 17,551.45 : x
  2. Step 2: Convert to fraction form
    30,983.07/42,753.17 = 17,551.45/x
  3. Step 3: Cross multiply
    30,983.07x = 42,753.17 × 17,551.45
  4. Step 4: Simplify right side
    30,983.07x = 750,379,930.96
  5. Step 5: Solve for x
    x = 750,379,930.96/30,983.07
  6. Step 6: Final answer
    x = 24,219.03

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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.