Home / 20,487.56-30,686.38-16,937.33

Finding the Fourth Proportional to 20,487.56, 30,686.38 and 16,937.33

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Solution

The fourth proportional to 20,487.56, 30,686.38 and 16,937.33 is: 25,368.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,487.56 : 30,686.38 = 16,937.33 : x
  2. Step 2: Convert to fraction form
    20,487.56/30,686.38 = 16,937.33/x
  3. Step 3: Cross multiply
    20,487.56x = 30,686.38 × 16,937.33
  4. Step 4: Simplify right side
    20,487.56x = 519,745,106.45
  5. Step 5: Solve for x
    x = 519,745,106.45/20,487.56
  6. Step 6: Final answer
    x = 25,368.82

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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.