Home / 39,624.94-54,685.89-21,723.40

Finding the Fourth Proportional to 39,624.94, 54,685.89 and 21,723.40

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Solution

The fourth proportional to 39,624.94, 54,685.89 and 21,723.40 is: 29,980.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,624.94 : 54,685.89 = 21,723.40 : x
  2. Step 2: Convert to fraction form
    39,624.94/54,685.89 = 21,723.40/x
  3. Step 3: Cross multiply
    39,624.94x = 54,685.89 × 21,723.40
  4. Step 4: Simplify right side
    39,624.94x = 1,187,963,462.83
  5. Step 5: Solve for x
    x = 1,187,963,462.83/39,624.94
  6. Step 6: Final answer
    x = 29,980.20

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.