Home / 38,090.68-57,122.64-11,428.72

Finding the Fourth Proportional to 38,090.68, 57,122.64 and 11,428.72

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Solution

The fourth proportional to 38,090.68, 57,122.64 and 11,428.72 is: 17,139.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,090.68 : 57,122.64 = 11,428.72 : x
  2. Step 2: Convert to fraction form
    38,090.68/57,122.64 = 11,428.72/x
  3. Step 3: Cross multiply
    38,090.68x = 57,122.64 × 11,428.72
  4. Step 4: Simplify right side
    38,090.68x = 652,838,658.22
  5. Step 5: Solve for x
    x = 652,838,658.22/38,090.68
  6. Step 6: Final answer
    x = 17,139.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.