Home / 20,588.96-30,732.76-17,685.92

Finding the Fourth Proportional to 20,588.96, 30,732.76 and 17,685.92

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Solution

The fourth proportional to 20,588.96, 30,732.76 and 17,685.92 is: 26,399.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,588.96 : 30,732.76 = 17,685.92 : x
  2. Step 2: Convert to fraction form
    20,588.96/30,732.76 = 17,685.92/x
  3. Step 3: Cross multiply
    20,588.96x = 30,732.76 × 17,685.92
  4. Step 4: Simplify right side
    20,588.96x = 543,537,134.74
  5. Step 5: Solve for x
    x = 543,537,134.74/20,588.96
  6. Step 6: Final answer
    x = 26,399.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.