Home / 26,420.10-39,635.32-9,780.27

Finding the Fourth Proportional to 26,420.10, 39,635.32 and 9,780.27

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Solution

The fourth proportional to 26,420.10, 39,635.32 and 9,780.27 is: 14,672.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,420.10 : 39,635.32 = 9,780.27 : x
  2. Step 2: Convert to fraction form
    26,420.10/39,635.32 = 9,780.27/x
  3. Step 3: Cross multiply
    26,420.10x = 39,635.32 × 9,780.27
  4. Step 4: Simplify right side
    26,420.10x = 387,644,131.14
  5. Step 5: Solve for x
    x = 387,644,131.14/26,420.10
  6. Step 6: Final answer
    x = 14,672.32

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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.