Home / 30,952.51-42,713.29-16,805.05

Finding the Fourth Proportional to 30,952.51, 42,713.29 and 16,805.05

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Solution

The fourth proportional to 30,952.51, 42,713.29 and 16,805.05 is: 23,190.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,952.51 : 42,713.29 = 16,805.05 : x
  2. Step 2: Convert to fraction form
    30,952.51/42,713.29 = 16,805.05/x
  3. Step 3: Cross multiply
    30,952.51x = 42,713.29 × 16,805.05
  4. Step 4: Simplify right side
    30,952.51x = 717,798,974.11
  5. Step 5: Solve for x
    x = 717,798,974.11/30,952.51
  6. Step 6: Final answer
    x = 23,190.33

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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.