Home / 18,271.68-27,459.36-17,805.12

Finding the Fourth Proportional to 18,271.68, 27,459.36 and 17,805.12

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Solution

The fourth proportional to 18,271.68, 27,459.36 and 17,805.12 is: 26,758.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,271.68 : 27,459.36 = 17,805.12 : x
  2. Step 2: Convert to fraction form
    18,271.68/27,459.36 = 17,805.12/x
  3. Step 3: Cross multiply
    18,271.68x = 27,459.36 × 17,805.12
  4. Step 4: Simplify right side
    18,271.68x = 488,917,199.92
  5. Step 5: Solve for x
    x = 488,917,199.92/18,271.68
  6. Step 6: Final answer
    x = 26,758.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.