Home / 26,455.84-39,663.60-20,624.80

Finding the Fourth Proportional to 26,455.84, 39,663.60 and 20,624.80

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Solution

The fourth proportional to 26,455.84, 39,663.60 and 20,624.80 is: 30,921.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,455.84 : 39,663.60 = 20,624.80 : x
  2. Step 2: Convert to fraction form
    26,455.84/39,663.60 = 20,624.80/x
  3. Step 3: Cross multiply
    26,455.84x = 39,663.60 × 20,624.80
  4. Step 4: Simplify right side
    26,455.84x = 818,053,817.28
  5. Step 5: Solve for x
    x = 818,053,817.28/26,455.84
  6. Step 6: Final answer
    x = 30,921.48

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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.