Home / 38,015.40-52,459.68-21,018.54

Finding the Fourth Proportional to 38,015.40, 52,459.68 and 21,018.54

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Solution

The fourth proportional to 38,015.40, 52,459.68 and 21,018.54 is: 29,004.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,015.40 : 52,459.68 = 21,018.54 : x
  2. Step 2: Convert to fraction form
    38,015.40/52,459.68 = 21,018.54/x
  3. Step 3: Cross multiply
    38,015.40x = 52,459.68 × 21,018.54
  4. Step 4: Simplify right side
    38,015.40x = 1,102,625,882.47
  5. Step 5: Solve for x
    x = 1,102,625,882.47/38,015.40
  6. Step 6: Final answer
    x = 29,004.72

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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.