Home / 20,125.45-30,187.23-9,587.80

Finding the Fourth Proportional to 20,125.45, 30,187.23 and 9,587.80

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Solution

The fourth proportional to 20,125.45, 30,187.23 and 9,587.80 is: 14,381.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,125.45 : 30,187.23 = 9,587.80 : x
  2. Step 2: Convert to fraction form
    20,125.45/30,187.23 = 9,587.80/x
  3. Step 3: Cross multiply
    20,125.45x = 30,187.23 × 9,587.80
  4. Step 4: Simplify right side
    20,125.45x = 289,429,123.79
  5. Step 5: Solve for x
    x = 289,429,123.79/20,125.45
  6. Step 6: Final answer
    x = 14,381.25

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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.