Home / 19,318.04-28,921.90-12,724.12

Finding the Fourth Proportional to 19,318.04, 28,921.90 and 12,724.12

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Solution

The fourth proportional to 19,318.04, 28,921.90 and 12,724.12 is: 19,049.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,318.04 : 28,921.90 = 12,724.12 : x
  2. Step 2: Convert to fraction form
    19,318.04/28,921.90 = 12,724.12/x
  3. Step 3: Cross multiply
    19,318.04x = 28,921.90 × 12,724.12
  4. Step 4: Simplify right side
    19,318.04x = 368,005,726.23
  5. Step 5: Solve for x
    x = 368,005,726.23/19,318.04
  6. Step 6: Final answer
    x = 19,049.85

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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.