Home / 19,904.84-27,471.35-12,851.76

Finding the Fourth Proportional to 19,904.84, 27,471.35 and 12,851.76

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Solution

The fourth proportional to 19,904.84, 27,471.35 and 12,851.76 is: 17,737.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,904.84 : 27,471.35 = 12,851.76 : x
  2. Step 2: Convert to fraction form
    19,904.84/27,471.35 = 12,851.76/x
  3. Step 3: Cross multiply
    19,904.84x = 27,471.35 × 12,851.76
  4. Step 4: Simplify right side
    19,904.84x = 353,055,332.22
  5. Step 5: Solve for x
    x = 353,055,332.22/19,904.84
  6. Step 6: Final answer
    x = 17,737.16

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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.