Home / 21,677.32-29,913.06-12,246.76

Finding the Fourth Proportional to 21,677.32, 29,913.06 and 12,246.76

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Solution

The fourth proportional to 21,677.32, 29,913.06 and 12,246.76 is: 16,899.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,677.32 : 29,913.06 = 12,246.76 : x
  2. Step 2: Convert to fraction form
    21,677.32/29,913.06 = 12,246.76/x
  3. Step 3: Cross multiply
    21,677.32x = 29,913.06 × 12,246.76
  4. Step 4: Simplify right side
    21,677.32x = 366,338,066.69
  5. Step 5: Solve for x
    x = 366,338,066.69/21,677.32
  6. Step 6: Final answer
    x = 16,899.60

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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.