Home / 30,579.96-42,199.56-16,968

Finding the Fourth Proportional to 30,579.96, 42,199.56 and 16,968

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Solution

The fourth proportional to 30,579.96, 42,199.56 and 16,968 is: 23,415.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,579.96 : 42,199.56 = 16,968 : x
  2. Step 2: Convert to fraction form
    30,579.96/42,199.56 = 16,968/x
  3. Step 3: Cross multiply
    30,579.96x = 42,199.56 × 16,968
  4. Step 4: Simplify right side
    30,579.96x = 716,042,134.08
  5. Step 5: Solve for x
    x = 716,042,134.08/30,579.96
  6. Step 6: Final answer
    x = 23,415.40

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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.