Home / 30,163.66-45,248.98-11,457.72

Finding the Fourth Proportional to 30,163.66, 45,248.98 and 11,457.72

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Solution

The fourth proportional to 30,163.66, 45,248.98 and 11,457.72 is: 17,187.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,163.66 : 45,248.98 = 11,457.72 : x
  2. Step 2: Convert to fraction form
    30,163.66/45,248.98 = 11,457.72/x
  3. Step 3: Cross multiply
    30,163.66x = 45,248.98 × 11,457.72
  4. Step 4: Simplify right side
    30,163.66x = 518,450,143.13
  5. Step 5: Solve for x
    x = 518,450,143.13/30,163.66
  6. Step 6: Final answer
    x = 17,187.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.