Home / 30,853-42,577.36-16,705.88

Finding the Fourth Proportional to 30,853, 42,577.36 and 16,705.88

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Solution

The fourth proportional to 30,853, 42,577.36 and 16,705.88 is: 23,054.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,853 : 42,577.36 = 16,705.88 : x
  2. Step 2: Convert to fraction form
    30,853/42,577.36 = 16,705.88/x
  3. Step 3: Cross multiply
    30,853x = 42,577.36 × 16,705.88
  4. Step 4: Simplify right side
    30,853x = 711,292,266.88
  5. Step 5: Solve for x
    x = 711,292,266.88/30,853
  6. Step 6: Final answer
    x = 23,054.23

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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.