Home / 21,682.80-29,925.18-12,733.92

Finding the Fourth Proportional to 21,682.80, 29,925.18 and 12,733.92

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Solution

The fourth proportional to 21,682.80, 29,925.18 and 12,733.92 is: 17,574.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,682.80 : 29,925.18 = 12,733.92 : x
  2. Step 2: Convert to fraction form
    21,682.80/29,925.18 = 12,733.92/x
  3. Step 3: Cross multiply
    21,682.80x = 29,925.18 × 12,733.92
  4. Step 4: Simplify right side
    21,682.80x = 381,064,848.11
  5. Step 5: Solve for x
    x = 381,064,848.11/21,682.80
  6. Step 6: Final answer
    x = 17,574.52

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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.