Home / 26,420.72-39,636.26-9,780.89

Finding the Fourth Proportional to 26,420.72, 39,636.26 and 9,780.89

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Solution

The fourth proportional to 26,420.72, 39,636.26 and 9,780.89 is: 14,673.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,420.72 : 39,636.26 = 9,780.89 : x
  2. Step 2: Convert to fraction form
    26,420.72/39,636.26 = 9,780.89/x
  3. Step 3: Cross multiply
    26,420.72x = 39,636.26 × 9,780.89
  4. Step 4: Simplify right side
    26,420.72x = 387,678,022.61
  5. Step 5: Solve for x
    x = 387,678,022.61/26,420.72
  6. Step 6: Final answer
    x = 14,673.26

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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.