Home / 30,191.82-45,287.70-19,801.14

Finding the Fourth Proportional to 30,191.82, 45,287.70 and 19,801.14

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Solution

The fourth proportional to 30,191.82, 45,287.70 and 19,801.14 is: 29,701.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,191.82 : 45,287.70 = 19,801.14 : x
  2. Step 2: Convert to fraction form
    30,191.82/45,287.70 = 19,801.14/x
  3. Step 3: Cross multiply
    30,191.82x = 45,287.70 × 19,801.14
  4. Step 4: Simplify right side
    30,191.82x = 896,748,087.98
  5. Step 5: Solve for x
    x = 896,748,087.98/30,191.82
  6. Step 6: Final answer
    x = 29,701.69

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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.