Home / 30,656.48-42,305.90-17,918.42

Finding the Fourth Proportional to 30,656.48, 42,305.90 and 17,918.42

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Solution

The fourth proportional to 30,656.48, 42,305.90 and 17,918.42 is: 24,727.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,656.48 : 42,305.90 = 17,918.42 : x
  2. Step 2: Convert to fraction form
    30,656.48/42,305.90 = 17,918.42/x
  3. Step 3: Cross multiply
    30,656.48x = 42,305.90 × 17,918.42
  4. Step 4: Simplify right side
    30,656.48x = 758,054,884.68
  5. Step 5: Solve for x
    x = 758,054,884.68/30,656.48
  6. Step 6: Final answer
    x = 24,727.39

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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.