Home / 19,784.73-27,303.28-12,230.88

Finding the Fourth Proportional to 19,784.73, 27,303.28 and 12,230.88

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Solution

The fourth proportional to 19,784.73, 27,303.28 and 12,230.88 is: 16,878.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,784.73 : 27,303.28 = 12,230.88 : x
  2. Step 2: Convert to fraction form
    19,784.73/27,303.28 = 12,230.88/x
  3. Step 3: Cross multiply
    19,784.73x = 27,303.28 × 12,230.88
  4. Step 4: Simplify right side
    19,784.73x = 333,943,008.32
  5. Step 5: Solve for x
    x = 333,943,008.32/19,784.73
  6. Step 6: Final answer
    x = 16,878.82

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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.