Home / 19,776.52-29,640.12-14,145.76

Finding the Fourth Proportional to 19,776.52, 29,640.12 and 14,145.76

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Solution

The fourth proportional to 19,776.52, 29,640.12 and 14,145.76 is: 21,201.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,776.52 : 29,640.12 = 14,145.76 : x
  2. Step 2: Convert to fraction form
    19,776.52/29,640.12 = 14,145.76/x
  3. Step 3: Cross multiply
    19,776.52x = 29,640.12 × 14,145.76
  4. Step 4: Simplify right side
    19,776.52x = 419,282,023.89
  5. Step 5: Solve for x
    x = 419,282,023.89/19,776.52
  6. Step 6: Final answer
    x = 21,201.00

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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.