Home / 28,648.27-42,972.41-8,926.81

Finding the Fourth Proportional to 28,648.27, 42,972.41 and 8,926.81

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Solution

The fourth proportional to 28,648.27, 42,972.41 and 8,926.81 is: 13,390.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,648.27 : 42,972.41 = 8,926.81 : x
  2. Step 2: Convert to fraction form
    28,648.27/42,972.41 = 8,926.81/x
  3. Step 3: Cross multiply
    28,648.27x = 42,972.41 × 8,926.81
  4. Step 4: Simplify right side
    28,648.27x = 383,606,539.31
  5. Step 5: Solve for x
    x = 383,606,539.31/28,648.27
  6. Step 6: Final answer
    x = 13,390.22

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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.