Home / 30,240.51-45,366.24-12,461.28

Finding the Fourth Proportional to 30,240.51, 45,366.24 and 12,461.28

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Solution

The fourth proportional to 30,240.51, 45,366.24 and 12,461.28 is: 18,694.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,240.51 : 45,366.24 = 12,461.28 : x
  2. Step 2: Convert to fraction form
    30,240.51/45,366.24 = 12,461.28/x
  3. Step 3: Cross multiply
    30,240.51x = 45,366.24 × 12,461.28
  4. Step 4: Simplify right side
    30,240.51x = 565,321,480.88
  5. Step 5: Solve for x
    x = 565,321,480.88/30,240.51
  6. Step 6: Final answer
    x = 18,694.18

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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.