Home / 39,054.84-53,895.59-21,149.79

Finding the Fourth Proportional to 39,054.84, 53,895.59 and 21,149.79

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Solution

The fourth proportional to 39,054.84, 53,895.59 and 21,149.79 is: 29,186.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,054.84 : 53,895.59 = 21,149.79 : x
  2. Step 2: Convert to fraction form
    39,054.84/53,895.59 = 21,149.79/x
  3. Step 3: Cross multiply
    39,054.84x = 53,895.59 × 21,149.79
  4. Step 4: Simplify right side
    39,054.84x = 1,139,880,463.30
  5. Step 5: Solve for x
    x = 1,139,880,463.30/39,054.84
  6. Step 6: Final answer
    x = 29,186.66

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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.