Home / 21,707.36-29,956.76-12,277.36

Finding the Fourth Proportional to 21,707.36, 29,956.76 and 12,277.36

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Solution

The fourth proportional to 21,707.36, 29,956.76 and 12,277.36 is: 16,943.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,707.36 : 29,956.76 = 12,277.36 : x
  2. Step 2: Convert to fraction form
    21,707.36/29,956.76 = 12,277.36/x
  3. Step 3: Cross multiply
    21,707.36x = 29,956.76 × 12,277.36
  4. Step 4: Simplify right side
    21,707.36x = 367,789,926.95
  5. Step 5: Solve for x
    x = 367,789,926.95/21,707.36
  6. Step 6: Final answer
    x = 16,943.10

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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.