Home / 30,275.88-41,774.40-18,340.08

Finding the Fourth Proportional to 30,275.88, 41,774.40 and 18,340.08

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Solution

The fourth proportional to 30,275.88, 41,774.40 and 18,340.08 is: 25,305.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,275.88 : 41,774.40 = 18,340.08 : x
  2. Step 2: Convert to fraction form
    30,275.88/41,774.40 = 18,340.08/x
  3. Step 3: Cross multiply
    30,275.88x = 41,774.40 × 18,340.08
  4. Step 4: Simplify right side
    30,275.88x = 766,145,837.95
  5. Step 5: Solve for x
    x = 766,145,837.95/30,275.88
  6. Step 6: Final answer
    x = 25,305.49

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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.