Home / 20,242.40-27,924.30-13,536.95

Finding the Fourth Proportional to 20,242.40, 27,924.30 and 13,536.95

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Solution

The fourth proportional to 20,242.40, 27,924.30 and 13,536.95 is: 18,674.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,242.40 : 27,924.30 = 13,536.95 : x
  2. Step 2: Convert to fraction form
    20,242.40/27,924.30 = 13,536.95/x
  3. Step 3: Cross multiply
    20,242.40x = 27,924.30 × 13,536.95
  4. Step 4: Simplify right side
    20,242.40x = 378,009,922.70
  5. Step 5: Solve for x
    x = 378,009,922.70/20,242.40
  6. Step 6: Final answer
    x = 18,674.16

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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.