Home / 30,121.12-41,570.04-16,695.28

Finding the Fourth Proportional to 30,121.12, 41,570.04 and 16,695.28

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Solution

The fourth proportional to 30,121.12, 41,570.04 and 16,695.28 is: 23,041.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,121.12 : 41,570.04 = 16,695.28 : x
  2. Step 2: Convert to fraction form
    30,121.12/41,570.04 = 16,695.28/x
  3. Step 3: Cross multiply
    30,121.12x = 41,570.04 × 16,695.28
  4. Step 4: Simplify right side
    30,121.12x = 694,023,457.41
  5. Step 5: Solve for x
    x = 694,023,457.41/30,121.12
  6. Step 6: Final answer
    x = 23,041.09

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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.