Home / 28,561.67-39,409.50-17,945.17

Finding the Fourth Proportional to 28,561.67, 39,409.50 and 17,945.17

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Solution

The fourth proportional to 28,561.67, 39,409.50 and 17,945.17 is: 24,760.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,561.67 : 39,409.50 = 17,945.17 : x
  2. Step 2: Convert to fraction form
    28,561.67/39,409.50 = 17,945.17/x
  3. Step 3: Cross multiply
    28,561.67x = 39,409.50 × 17,945.17
  4. Step 4: Simplify right side
    28,561.67x = 707,210,177.12
  5. Step 5: Solve for x
    x = 707,210,177.12/28,561.67
  6. Step 6: Final answer
    x = 24,760.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.