Home / 30,521.27-45,786-28,675.98

Finding the Fourth Proportional to 30,521.27, 45,786 and 28,675.98

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Solution

The fourth proportional to 30,521.27, 45,786 and 28,675.98 is: 43,017.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,521.27 : 45,786 = 28,675.98 : x
  2. Step 2: Convert to fraction form
    30,521.27/45,786 = 28,675.98/x
  3. Step 3: Cross multiply
    30,521.27x = 45,786 × 28,675.98
  4. Step 4: Simplify right side
    30,521.27x = 1,312,958,420.28
  5. Step 5: Solve for x
    x = 1,312,958,420.28/30,521.27
  6. Step 6: Final answer
    x = 43,017.82

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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.