Home / 30,485.18-42,069.71-17,056.44

Finding the Fourth Proportional to 30,485.18, 42,069.71 and 17,056.44

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Solution

The fourth proportional to 30,485.18, 42,069.71 and 17,056.44 is: 23,537.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,485.18 : 42,069.71 = 17,056.44 : x
  2. Step 2: Convert to fraction form
    30,485.18/42,069.71 = 17,056.44/x
  3. Step 3: Cross multiply
    30,485.18x = 42,069.71 × 17,056.44
  4. Step 4: Simplify right side
    30,485.18x = 717,559,527.07
  5. Step 5: Solve for x
    x = 717,559,527.07/30,485.18
  6. Step 6: Final answer
    x = 23,537.98

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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.