Home / 39,387.84-58,991.04-19,605.12

Finding the Fourth Proportional to 39,387.84, 58,991.04 and 19,605.12

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Solution

The fourth proportional to 39,387.84, 58,991.04 and 19,605.12 is: 29,362.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,387.84 : 58,991.04 = 19,605.12 : x
  2. Step 2: Convert to fraction form
    39,387.84/58,991.04 = 19,605.12/x
  3. Step 3: Cross multiply
    39,387.84x = 58,991.04 × 19,605.12
  4. Step 4: Simplify right side
    39,387.84x = 1,156,526,418.12
  5. Step 5: Solve for x
    x = 1,156,526,418.12/39,387.84
  6. Step 6: Final answer
    x = 29,362.52

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1.5x scale

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.