Home / 28,774.40-43,150.25-13,978.94

Finding the Fourth Proportional to 28,774.40, 43,150.25 and 13,978.94

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Solution

The fourth proportional to 28,774.40, 43,150.25 and 13,978.94 is: 20,962.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,774.40 : 43,150.25 = 13,978.94 : x
  2. Step 2: Convert to fraction form
    28,774.40/43,150.25 = 13,978.94/x
  3. Step 3: Cross multiply
    28,774.40x = 43,150.25 × 13,978.94
  4. Step 4: Simplify right side
    28,774.40x = 603,194,574.93
  5. Step 5: Solve for x
    x = 603,194,574.93/28,774.40
  6. Step 6: Final answer
    x = 20,962.89

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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.