Home / 26,310.08-36,280.64-20,342.72

Finding the Fourth Proportional to 26,310.08, 36,280.64 and 20,342.72

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Solution

The fourth proportional to 26,310.08, 36,280.64 and 20,342.72 is: 28,051.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,310.08 : 36,280.64 = 20,342.72 : x
  2. Step 2: Convert to fraction form
    26,310.08/36,280.64 = 20,342.72/x
  3. Step 3: Cross multiply
    26,310.08x = 36,280.64 × 20,342.72
  4. Step 4: Simplify right side
    26,310.08x = 738,046,900.94
  5. Step 5: Solve for x
    x = 738,046,900.94/26,310.08
  6. Step 6: Final answer
    x = 28,051.87

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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.