Home / 39,569.47-54,603.80-21,661.05

Finding the Fourth Proportional to 39,569.47, 54,603.80 and 21,661.05

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Solution

The fourth proportional to 39,569.47, 54,603.80 and 21,661.05 is: 29,891.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,569.47 : 54,603.80 = 21,661.05 : x
  2. Step 2: Convert to fraction form
    39,569.47/54,603.80 = 21,661.05/x
  3. Step 3: Cross multiply
    39,569.47x = 54,603.80 × 21,661.05
  4. Step 4: Simplify right side
    39,569.47x = 1,182,775,260.67
  5. Step 5: Solve for x
    x = 1,182,775,260.67/39,569.47
  6. Step 6: Final answer
    x = 29,891.11

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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.