Home / 38,015.48-52,459.08-21,018.70

Finding the Fourth Proportional to 38,015.48, 52,459.08 and 21,018.70

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Solution

The fourth proportional to 38,015.48, 52,459.08 and 21,018.70 is: 29,004.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,015.48 : 52,459.08 = 21,018.70 : x
  2. Step 2: Convert to fraction form
    38,015.48/52,459.08 = 21,018.70/x
  3. Step 3: Cross multiply
    38,015.48x = 52,459.08 × 21,018.70
  4. Step 4: Simplify right side
    38,015.48x = 1,102,621,664.80
  5. Step 5: Solve for x
    x = 1,102,621,664.80/38,015.48
  6. Step 6: Final answer
    x = 29,004.54

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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.