Home / 28,077.24-42,125.46-12,505.72

Finding the Fourth Proportional to 28,077.24, 42,125.46 and 12,505.72

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Solution

The fourth proportional to 28,077.24, 42,125.46 and 12,505.72 is: 18,762.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,077.24 : 42,125.46 = 12,505.72 : x
  2. Step 2: Convert to fraction form
    28,077.24/42,125.46 = 12,505.72/x
  3. Step 3: Cross multiply
    28,077.24x = 42,125.46 × 12,505.72
  4. Step 4: Simplify right side
    28,077.24x = 526,809,207.63
  5. Step 5: Solve for x
    x = 526,809,207.63/28,077.24
  6. Step 6: Final answer
    x = 18,762.86

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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.