Home / 30,690.06-42,356.04-17,261.88

Finding the Fourth Proportional to 30,690.06, 42,356.04 and 17,261.88

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Solution

The fourth proportional to 30,690.06, 42,356.04 and 17,261.88 is: 23,823.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,690.06 : 42,356.04 = 17,261.88 : x
  2. Step 2: Convert to fraction form
    30,690.06/42,356.04 = 17,261.88/x
  3. Step 3: Cross multiply
    30,690.06x = 42,356.04 × 17,261.88
  4. Step 4: Simplify right side
    30,690.06x = 731,144,879.76
  5. Step 5: Solve for x
    x = 731,144,879.76/30,690.06
  6. Step 6: Final answer
    x = 23,823.51

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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.