Home / 39,044.74-53,881.66-21,139.74

Finding the Fourth Proportional to 39,044.74, 53,881.66 and 21,139.74

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Solution

The fourth proportional to 39,044.74, 53,881.66 and 21,139.74 is: 29,172.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,044.74 : 53,881.66 = 21,139.74 : x
  2. Step 2: Convert to fraction form
    39,044.74/53,881.66 = 21,139.74/x
  3. Step 3: Cross multiply
    39,044.74x = 53,881.66 × 21,139.74
  4. Step 4: Simplify right side
    39,044.74x = 1,139,044,283.17
  5. Step 5: Solve for x
    x = 1,139,044,283.17/39,044.74
  6. Step 6: Final answer
    x = 29,172.80

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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.