Home / 28,622.41-39,499.07-15,874.71

Finding the Fourth Proportional to 28,622.41, 39,499.07 and 15,874.71

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Solution

The fourth proportional to 28,622.41, 39,499.07 and 15,874.71 is: 21,907.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,622.41 : 39,499.07 = 15,874.71 : x
  2. Step 2: Convert to fraction form
    28,622.41/39,499.07 = 15,874.71/x
  3. Step 3: Cross multiply
    28,622.41x = 39,499.07 × 15,874.71
  4. Step 4: Simplify right side
    28,622.41x = 627,036,209.76
  5. Step 5: Solve for x
    x = 627,036,209.76/28,622.41
  6. Step 6: Final answer
    x = 21,907.17

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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.