Home / 48,428.94-72,643.42-20,707.50

Finding the Fourth Proportional to 48,428.94, 72,643.42 and 20,707.50

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Solution

The fourth proportional to 48,428.94, 72,643.42 and 20,707.50 is: 31,061.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,428.94 : 72,643.42 = 20,707.50 : x
  2. Step 2: Convert to fraction form
    48,428.94/72,643.42 = 20,707.50/x
  3. Step 3: Cross multiply
    48,428.94x = 72,643.42 × 20,707.50
  4. Step 4: Simplify right side
    48,428.94x = 1,504,263,619.65
  5. Step 5: Solve for x
    x = 1,504,263,619.65/48,428.94
  6. Step 6: Final answer
    x = 31,061.25

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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.