Home / 28,226.36-38,954.13-15,651.11

Finding the Fourth Proportional to 28,226.36, 38,954.13 and 15,651.11

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Solution

The fourth proportional to 28,226.36, 38,954.13 and 15,651.11 is: 21,599.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,226.36 : 38,954.13 = 15,651.11 : x
  2. Step 2: Convert to fraction form
    28,226.36/38,954.13 = 15,651.11/x
  3. Step 3: Cross multiply
    28,226.36x = 38,954.13 × 15,651.11
  4. Step 4: Simplify right side
    28,226.36x = 609,675,373.58
  5. Step 5: Solve for x
    x = 609,675,373.58/28,226.36
  6. Step 6: Final answer
    x = 21,599.50

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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.