Home / 30,595.11-42,221.90-17,167.34

Finding the Fourth Proportional to 30,595.11, 42,221.90 and 17,167.34

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Solution

The fourth proportional to 30,595.11, 42,221.90 and 17,167.34 is: 23,691.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,595.11 : 42,221.90 = 17,167.34 : x
  2. Step 2: Convert to fraction form
    30,595.11/42,221.90 = 17,167.34/x
  3. Step 3: Cross multiply
    30,595.11x = 42,221.90 × 17,167.34
  4. Step 4: Simplify right side
    30,595.11x = 724,837,415.80
  5. Step 5: Solve for x
    x = 724,837,415.80/30,595.11
  6. Step 6: Final answer
    x = 23,691.28

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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.