Home / 30,530.01-45,716.15-21,071.52

Finding the Fourth Proportional to 30,530.01, 45,716.15 and 21,071.52

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Solution

The fourth proportional to 30,530.01, 45,716.15 and 21,071.52 is: 31,552.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,530.01 : 45,716.15 = 21,071.52 : x
  2. Step 2: Convert to fraction form
    30,530.01/45,716.15 = 21,071.52/x
  3. Step 3: Cross multiply
    30,530.01x = 45,716.15 × 21,071.52
  4. Step 4: Simplify right side
    30,530.01x = 963,308,821.73
  5. Step 5: Solve for x
    x = 963,308,821.73/30,530.01
  6. Step 6: Final answer
    x = 31,552.85

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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.