Home / 38,936.68-53,732.58-21,031.68

Finding the Fourth Proportional to 38,936.68, 53,732.58 and 21,031.68

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Solution

The fourth proportional to 38,936.68, 53,732.58 and 21,031.68 is: 29,023.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,936.68 : 53,732.58 = 21,031.68 : x
  2. Step 2: Convert to fraction form
    38,936.68/53,732.58 = 21,031.68/x
  3. Step 3: Cross multiply
    38,936.68x = 53,732.58 × 21,031.68
  4. Step 4: Simplify right side
    38,936.68x = 1,130,086,428.13
  5. Step 5: Solve for x
    x = 1,130,086,428.13/38,936.68
  6. Step 6: Final answer
    x = 29,023.70

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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.