Home / 39,756.47-54,864.01-21,607.29

Finding the Fourth Proportional to 39,756.47, 54,864.01 and 21,607.29

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Solution

The fourth proportional to 39,756.47, 54,864.01 and 21,607.29 is: 29,818.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,756.47 : 54,864.01 = 21,607.29 : x
  2. Step 2: Convert to fraction form
    39,756.47/54,864.01 = 21,607.29/x
  3. Step 3: Cross multiply
    39,756.47x = 54,864.01 × 21,607.29
  4. Step 4: Simplify right side
    39,756.47x = 1,185,462,772.33
  5. Step 5: Solve for x
    x = 1,185,462,772.33/39,756.47
  6. Step 6: Final answer
    x = 29,818.11

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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.