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Finding the Fourth Proportional to 30,488.67, 45,718.02 and 10,764.36

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Solution

The fourth proportional to 30,488.67, 45,718.02 and 10,764.36 is: 16,141.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,488.67 : 45,718.02 = 10,764.36 : x
  2. Step 2: Convert to fraction form
    30,488.67/45,718.02 = 10,764.36/x
  3. Step 3: Cross multiply
    30,488.67x = 45,718.02 × 10,764.36
  4. Step 4: Simplify right side
    30,488.67x = 492,125,225.77
  5. Step 5: Solve for x
    x = 492,125,225.77/30,488.67
  6. Step 6: Final answer
    x = 16,141.25

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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.