Home / 39,569.13-54,605.21-21,663.81

Finding the Fourth Proportional to 39,569.13, 54,605.21 and 21,663.81

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Solution

The fourth proportional to 39,569.13, 54,605.21 and 21,663.81 is: 29,895.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,569.13 : 54,605.21 = 21,663.81 : x
  2. Step 2: Convert to fraction form
    39,569.13/54,605.21 = 21,663.81/x
  3. Step 3: Cross multiply
    39,569.13x = 54,605.21 × 21,663.81
  4. Step 4: Simplify right side
    39,569.13x = 1,182,956,786.13
  5. Step 5: Solve for x
    x = 1,182,956,786.13/39,569.13
  6. Step 6: Final answer
    x = 29,895.95

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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.