Home / 19,232.20-28,848.30-12,665.80

Finding the Fourth Proportional to 19,232.20, 28,848.30 and 12,665.80

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Solution

The fourth proportional to 19,232.20, 28,848.30 and 12,665.80 is: 18,998.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,232.20 : 28,848.30 = 12,665.80 : x
  2. Step 2: Convert to fraction form
    19,232.20/28,848.30 = 12,665.80/x
  3. Step 3: Cross multiply
    19,232.20x = 28,848.30 × 12,665.80
  4. Step 4: Simplify right side
    19,232.20x = 365,386,798.14
  5. Step 5: Solve for x
    x = 365,386,798.14/19,232.20
  6. Step 6: Final answer
    x = 18,998.70

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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.