Home / 20,145.68-27,799.40-11,192.08

Finding the Fourth Proportional to 20,145.68, 27,799.40 and 11,192.08

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Solution

The fourth proportional to 20,145.68, 27,799.40 and 11,192.08 is: 15,444.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,145.68 : 27,799.40 = 11,192.08 : x
  2. Step 2: Convert to fraction form
    20,145.68/27,799.40 = 11,192.08/x
  3. Step 3: Cross multiply
    20,145.68x = 27,799.40 × 11,192.08
  4. Step 4: Simplify right side
    20,145.68x = 311,133,108.75
  5. Step 5: Solve for x
    x = 311,133,108.75/20,145.68
  6. Step 6: Final answer
    x = 15,444.16

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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.