Home / 30,528.32-45,713.62-21,069.83

Finding the Fourth Proportional to 30,528.32, 45,713.62 and 21,069.83

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Solution

The fourth proportional to 30,528.32, 45,713.62 and 21,069.83 is: 31,550.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,528.32 : 45,713.62 = 21,069.83 : x
  2. Step 2: Convert to fraction form
    30,528.32/45,713.62 = 21,069.83/x
  3. Step 3: Cross multiply
    30,528.32x = 45,713.62 × 21,069.83
  4. Step 4: Simplify right side
    30,528.32x = 963,178,377.36
  5. Step 5: Solve for x
    x = 963,178,377.36/30,528.32
  6. Step 6: Final answer
    x = 31,550.32

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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.