Home / 30,648.98-45,909.69-19,500.45

Finding the Fourth Proportional to 30,648.98, 45,909.69 and 19,500.45

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Solution

The fourth proportional to 30,648.98, 45,909.69 and 19,500.45 is: 29,210.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,648.98 : 45,909.69 = 19,500.45 : x
  2. Step 2: Convert to fraction form
    30,648.98/45,909.69 = 19,500.45/x
  3. Step 3: Cross multiply
    30,648.98x = 45,909.69 × 19,500.45
  4. Step 4: Simplify right side
    30,648.98x = 895,259,369.07
  5. Step 5: Solve for x
    x = 895,259,369.07/30,648.98
  6. Step 6: Final answer
    x = 29,210.08

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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.