Home / 28,500.12-42,750.92-13,503.72

Finding the Fourth Proportional to 28,500.12, 42,750.92 and 13,503.72

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Solution

The fourth proportional to 28,500.12, 42,750.92 and 13,503.72 is: 20,255.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,500.12 : 42,750.92 = 13,503.72 : x
  2. Step 2: Convert to fraction form
    28,500.12/42,750.92 = 13,503.72/x
  3. Step 3: Cross multiply
    28,500.12x = 42,750.92 × 13,503.72
  4. Step 4: Simplify right side
    28,500.12x = 577,296,453.42
  5. Step 5: Solve for x
    x = 577,296,453.42/28,500.12
  6. Step 6: Final answer
    x = 20,255.93

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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.