Home / 18,754.06-28,106.48-13,800.51

Finding the Fourth Proportional to 18,754.06, 28,106.48 and 13,800.51

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Solution

The fourth proportional to 18,754.06, 28,106.48 and 13,800.51 is: 20,682.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,754.06 : 28,106.48 = 13,800.51 : x
  2. Step 2: Convert to fraction form
    18,754.06/28,106.48 = 13,800.51/x
  3. Step 3: Cross multiply
    18,754.06x = 28,106.48 × 13,800.51
  4. Step 4: Simplify right side
    18,754.06x = 387,883,758.30
  5. Step 5: Solve for x
    x = 387,883,758.30/18,754.06
  6. Step 6: Final answer
    x = 20,682.66

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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.