Home / 26,580.20-39,812.70-21,972.20

Finding the Fourth Proportional to 26,580.20, 39,812.70 and 21,972.20

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Solution

The fourth proportional to 26,580.20, 39,812.70 and 21,972.20 is: 32,910.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,580.20 : 39,812.70 = 21,972.20 : x
  2. Step 2: Convert to fraction form
    26,580.20/39,812.70 = 21,972.20/x
  3. Step 3: Cross multiply
    26,580.20x = 39,812.70 × 21,972.20
  4. Step 4: Simplify right side
    26,580.20x = 874,772,606.94
  5. Step 5: Solve for x
    x = 874,772,606.94/26,580.20
  6. Step 6: Final answer
    x = 32,910.69

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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.