Home / 21,626.51-29,847.47-12,677.56

Finding the Fourth Proportional to 21,626.51, 29,847.47 and 12,677.56

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Solution

The fourth proportional to 21,626.51, 29,847.47 and 12,677.56 is: 17,496.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,626.51 : 29,847.47 = 12,677.56 : x
  2. Step 2: Convert to fraction form
    21,626.51/29,847.47 = 12,677.56/x
  3. Step 3: Cross multiply
    21,626.51x = 29,847.47 × 12,677.56
  4. Step 4: Simplify right side
    21,626.51x = 378,392,953.77
  5. Step 5: Solve for x
    x = 378,392,953.77/21,626.51
  6. Step 6: Final answer
    x = 17,496.72

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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.