Home / 39,561.12-59,313.68-18,478.80

Finding the Fourth Proportional to 39,561.12, 59,313.68 and 18,478.80

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Solution

The fourth proportional to 39,561.12, 59,313.68 and 18,478.80 is: 27,705.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,561.12 : 59,313.68 = 18,478.80 : x
  2. Step 2: Convert to fraction form
    39,561.12/59,313.68 = 18,478.80/x
  3. Step 3: Cross multiply
    39,561.12x = 59,313.68 × 18,478.80
  4. Step 4: Simplify right side
    39,561.12x = 1,096,045,629.98
  5. Step 5: Solve for x
    x = 1,096,045,629.98/39,561.12
  6. Step 6: Final answer
    x = 27,705.12

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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.