Home / 19,728.46-27,187.59-14,129.74

Finding the Fourth Proportional to 19,728.46, 27,187.59 and 14,129.74

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Solution

The fourth proportional to 19,728.46, 27,187.59 and 14,129.74 is: 19,472.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,728.46 : 27,187.59 = 14,129.74 : x
  2. Step 2: Convert to fraction form
    19,728.46/27,187.59 = 14,129.74/x
  3. Step 3: Cross multiply
    19,728.46x = 27,187.59 × 14,129.74
  4. Step 4: Simplify right side
    19,728.46x = 384,153,577.93
  5. Step 5: Solve for x
    x = 384,153,577.93/19,728.46
  6. Step 6: Final answer
    x = 19,472.05

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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.