Home / 30,486.42-42,072.88-17,056.86

Finding the Fourth Proportional to 30,486.42, 42,072.88 and 17,056.86

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Solution

The fourth proportional to 30,486.42, 42,072.88 and 17,056.86 is: 23,539.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,486.42 : 42,072.88 = 17,056.86 : x
  2. Step 2: Convert to fraction form
    30,486.42/42,072.88 = 17,056.86/x
  3. Step 3: Cross multiply
    30,486.42x = 42,072.88 × 17,056.86
  4. Step 4: Simplify right side
    30,486.42x = 717,631,223.96
  5. Step 5: Solve for x
    x = 717,631,223.96/30,486.42
  6. Step 6: Final answer
    x = 23,539.37

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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.