Home / 20,460.12-28,234.48-12,502.32

Finding the Fourth Proportional to 20,460.12, 28,234.48 and 12,502.32

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Solution

The fourth proportional to 20,460.12, 28,234.48 and 12,502.32 is: 17,252.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,460.12 : 28,234.48 = 12,502.32 : x
  2. Step 2: Convert to fraction form
    20,460.12/28,234.48 = 12,502.32/x
  3. Step 3: Cross multiply
    20,460.12x = 28,234.48 × 12,502.32
  4. Step 4: Simplify right side
    20,460.12x = 352,996,503.99
  5. Step 5: Solve for x
    x = 352,996,503.99/20,460.12
  6. Step 6: Final answer
    x = 17,252.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.