Home / 30,855.06-42,580.02-16,707.90

Finding the Fourth Proportional to 30,855.06, 42,580.02 and 16,707.90

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Solution

The fourth proportional to 30,855.06, 42,580.02 and 16,707.90 is: 23,056.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,855.06 : 42,580.02 = 16,707.90 : x
  2. Step 2: Convert to fraction form
    30,855.06/42,580.02 = 16,707.90/x
  3. Step 3: Cross multiply
    30,855.06x = 42,580.02 × 16,707.90
  4. Step 4: Simplify right side
    30,855.06x = 711,422,716.16
  5. Step 5: Solve for x
    x = 711,422,716.16/30,855.06
  6. Step 6: Final answer
    x = 23,056.92

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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.