Home / 30,576.55-42,194.59-17,149.99

Finding the Fourth Proportional to 30,576.55, 42,194.59 and 17,149.99

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Solution

The fourth proportional to 30,576.55, 42,194.59 and 17,149.99 is: 23,666.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,576.55 : 42,194.59 = 17,149.99 : x
  2. Step 2: Convert to fraction form
    30,576.55/42,194.59 = 17,149.99/x
  3. Step 3: Cross multiply
    30,576.55x = 42,194.59 × 17,149.99
  4. Step 4: Simplify right side
    30,576.55x = 723,636,796.55
  5. Step 5: Solve for x
    x = 723,636,796.55/30,576.55
  6. Step 6: Final answer
    x = 23,666.40

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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.