Home / 19,830.23-27,350.25-12,280.75

Finding the Fourth Proportional to 19,830.23, 27,350.25 and 12,280.75

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Solution

The fourth proportional to 19,830.23, 27,350.25 and 12,280.75 is: 16,937.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,830.23 : 27,350.25 = 12,280.75 : x
  2. Step 2: Convert to fraction form
    19,830.23/27,350.25 = 12,280.75/x
  3. Step 3: Cross multiply
    19,830.23x = 27,350.25 × 12,280.75
  4. Step 4: Simplify right side
    19,830.23x = 335,881,514.31
  5. Step 5: Solve for x
    x = 335,881,514.31/19,830.23
  6. Step 6: Final answer
    x = 16,937.86

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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.