Home / 30,215.26-45,272.76-18,503.88

Finding the Fourth Proportional to 30,215.26, 45,272.76 and 18,503.88

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Solution

The fourth proportional to 30,215.26, 45,272.76 and 18,503.88 is: 27,725.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,215.26 : 45,272.76 = 18,503.88 : x
  2. Step 2: Convert to fraction form
    30,215.26/45,272.76 = 18,503.88/x
  3. Step 3: Cross multiply
    30,215.26x = 45,272.76 × 18,503.88
  4. Step 4: Simplify right side
    30,215.26x = 837,721,718.31
  5. Step 5: Solve for x
    x = 837,721,718.31/30,215.26
  6. Step 6: Final answer
    x = 27,725.12

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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.