Home / 30,140.25-45,210.38-11,672.25

Finding the Fourth Proportional to 30,140.25, 45,210.38 and 11,672.25

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Solution

The fourth proportional to 30,140.25, 45,210.38 and 11,672.25 is: 17,508.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,140.25 : 45,210.38 = 11,672.25 : x
  2. Step 2: Convert to fraction form
    30,140.25/45,210.38 = 11,672.25/x
  3. Step 3: Cross multiply
    30,140.25x = 45,210.38 × 11,672.25
  4. Step 4: Simplify right side
    30,140.25x = 527,706,799.59
  5. Step 5: Solve for x
    x = 527,706,799.59/30,140.25
  6. Step 6: Final answer
    x = 17,508.38

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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.