Home / 30,653.73-42,302.12-17,915.67

Finding the Fourth Proportional to 30,653.73, 42,302.12 and 17,915.67

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Solution

The fourth proportional to 30,653.73, 42,302.12 and 17,915.67 is: 24,723.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,653.73 : 42,302.12 = 17,915.67 : x
  2. Step 2: Convert to fraction form
    30,653.73/42,302.12 = 17,915.67/x
  3. Step 3: Cross multiply
    30,653.73x = 42,302.12 × 17,915.67
  4. Step 4: Simplify right side
    30,653.73x = 757,870,732.64
  5. Step 5: Solve for x
    x = 757,870,732.64/30,653.73
  6. Step 6: Final answer
    x = 24,723.61

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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.