Home / 21,454.80-29,607.30-12,502.68

Finding the Fourth Proportional to 21,454.80, 29,607.30 and 12,502.68

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Solution

The fourth proportional to 21,454.80, 29,607.30 and 12,502.68 is: 17,253.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,454.80 : 29,607.30 = 12,502.68 : x
  2. Step 2: Convert to fraction form
    21,454.80/29,607.30 = 12,502.68/x
  3. Step 3: Cross multiply
    21,454.80x = 29,607.30 × 12,502.68
  4. Step 4: Simplify right side
    21,454.80x = 370,170,597.56
  5. Step 5: Solve for x
    x = 370,170,597.56/21,454.80
  6. Step 6: Final answer
    x = 17,253.51

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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.