Home / 30,607.20-42,242.19-16,998.30

Finding the Fourth Proportional to 30,607.20, 42,242.19 and 16,998.30

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Solution

The fourth proportional to 30,607.20, 42,242.19 and 16,998.30 is: 23,460.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,607.20 : 42,242.19 = 16,998.30 : x
  2. Step 2: Convert to fraction form
    30,607.20/42,242.19 = 16,998.30/x
  3. Step 3: Cross multiply
    30,607.20x = 42,242.19 × 16,998.30
  4. Step 4: Simplify right side
    30,607.20x = 718,045,418.28
  5. Step 5: Solve for x
    x = 718,045,418.28/30,607.20
  6. Step 6: Final answer
    x = 23,460.02

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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.