Home / 20,184.63-27,856.10-11,232.12

Finding the Fourth Proportional to 20,184.63, 27,856.10 and 11,232.12

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Solution

The fourth proportional to 20,184.63, 27,856.10 and 11,232.12 is: 15,501.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,184.63 : 27,856.10 = 11,232.12 : x
  2. Step 2: Convert to fraction form
    20,184.63/27,856.10 = 11,232.12/x
  3. Step 3: Cross multiply
    20,184.63x = 27,856.10 × 11,232.12
  4. Step 4: Simplify right side
    20,184.63x = 312,883,001.77
  5. Step 5: Solve for x
    x = 312,883,001.77/20,184.63
  6. Step 6: Final answer
    x = 15,501.05

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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.