Home / 20,160.16-30,225.74-9,480.52

Finding the Fourth Proportional to 20,160.16, 30,225.74 and 9,480.52

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Solution

The fourth proportional to 20,160.16, 30,225.74 and 9,480.52 is: 14,213.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,160.16 : 30,225.74 = 9,480.52 : x
  2. Step 2: Convert to fraction form
    20,160.16/30,225.74 = 9,480.52/x
  3. Step 3: Cross multiply
    20,160.16x = 30,225.74 × 9,480.52
  4. Step 4: Simplify right side
    20,160.16x = 286,555,732.58
  5. Step 5: Solve for x
    x = 286,555,732.58/20,160.16
  6. Step 6: Final answer
    x = 14,213.96

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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.