Home / 20,438.71-30,679.93-16,589.59

Finding the Fourth Proportional to 20,438.71, 30,679.93 and 16,589.59

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Solution

The fourth proportional to 20,438.71, 30,679.93 and 16,589.59 is: 24,902.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,438.71 : 30,679.93 = 16,589.59 : x
  2. Step 2: Convert to fraction form
    20,438.71/30,679.93 = 16,589.59/x
  3. Step 3: Cross multiply
    20,438.71x = 30,679.93 × 16,589.59
  4. Step 4: Simplify right side
    20,438.71x = 508,967,459.93
  5. Step 5: Solve for x
    x = 508,967,459.93/20,438.71
  6. Step 6: Final answer
    x = 24,902.13

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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.