Home / 39,042.22-53,877.89-21,136.76

Finding the Fourth Proportional to 39,042.22, 53,877.89 and 21,136.76

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Solution

The fourth proportional to 39,042.22, 53,877.89 and 21,136.76 is: 29,168.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,042.22 : 53,877.89 = 21,136.76 : x
  2. Step 2: Convert to fraction form
    39,042.22/53,877.89 = 21,136.76/x
  3. Step 3: Cross multiply
    39,042.22x = 53,877.89 × 21,136.76
  4. Step 4: Simplify right side
    39,042.22x = 1,138,804,030.24
  5. Step 5: Solve for x
    x = 1,138,804,030.24/39,042.22
  6. Step 6: Final answer
    x = 29,168.53

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1.5x scale

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.