Home / 30,655.14-42,305.09-17,228.98

Finding the Fourth Proportional to 30,655.14, 42,305.09 and 17,228.98

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Solution

The fourth proportional to 30,655.14, 42,305.09 and 17,228.98 is: 23,776.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,655.14 : 42,305.09 = 17,228.98 : x
  2. Step 2: Convert to fraction form
    30,655.14/42,305.09 = 17,228.98/x
  3. Step 3: Cross multiply
    30,655.14x = 42,305.09 × 17,228.98
  4. Step 4: Simplify right side
    30,655.14x = 728,873,549.51
  5. Step 5: Solve for x
    x = 728,873,549.51/30,655.14
  6. Step 6: Final answer
    x = 23,776.55

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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.