Home / 30,542.82-45,828-19,446.63

Finding the Fourth Proportional to 30,542.82, 45,828 and 19,446.63

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Solution

The fourth proportional to 30,542.82, 45,828 and 19,446.63 is: 29,178.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,542.82 : 45,828 = 19,446.63 : x
  2. Step 2: Convert to fraction form
    30,542.82/45,828 = 19,446.63/x
  3. Step 3: Cross multiply
    30,542.82x = 45,828 × 19,446.63
  4. Step 4: Simplify right side
    30,542.82x = 891,200,159.64
  5. Step 5: Solve for x
    x = 891,200,159.64/30,542.82
  6. Step 6: Final answer
    x = 29,178.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.