Home / 30,579.30-42,201.45-17,151.41

Finding the Fourth Proportional to 30,579.30, 42,201.45 and 17,151.41

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Solution

The fourth proportional to 30,579.30, 42,201.45 and 17,151.41 is: 23,670.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,579.30 : 42,201.45 = 17,151.41 : x
  2. Step 2: Convert to fraction form
    30,579.30/42,201.45 = 17,151.41/x
  3. Step 3: Cross multiply
    30,579.30x = 42,201.45 × 17,151.41
  4. Step 4: Simplify right side
    30,579.30x = 723,814,477.05
  5. Step 5: Solve for x
    x = 723,814,477.05/30,579.30
  6. Step 6: Final answer
    x = 23,670.08

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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.