Home / 36,018.36-49,720.50-21,875.76

Finding the Fourth Proportional to 36,018.36, 49,720.50 and 21,875.76

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Solution

The fourth proportional to 36,018.36, 49,720.50 and 21,875.76 is: 30,197.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,018.36 : 49,720.50 = 21,875.76 : x
  2. Step 2: Convert to fraction form
    36,018.36/49,720.50 = 21,875.76/x
  3. Step 3: Cross multiply
    36,018.36x = 49,720.50 × 21,875.76
  4. Step 4: Simplify right side
    36,018.36x = 1,087,673,725.08
  5. Step 5: Solve for x
    x = 1,087,673,725.08/36,018.36
  6. Step 6: Final answer
    x = 30,197.76

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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.