Home / 33,426.76-46,128.30-18,319

Finding the Fourth Proportional to 33,426.76, 46,128.30 and 18,319

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Solution

The fourth proportional to 33,426.76, 46,128.30 and 18,319 is: 25,279.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,426.76 : 46,128.30 = 18,319 : x
  2. Step 2: Convert to fraction form
    33,426.76/46,128.30 = 18,319/x
  3. Step 3: Cross multiply
    33,426.76x = 46,128.30 × 18,319
  4. Step 4: Simplify right side
    33,426.76x = 845,024,327.70
  5. Step 5: Solve for x
    x = 845,024,327.70/33,426.76
  6. Step 6: Final answer
    x = 25,279.88

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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.