Home / 21,476.58-29,639.16-12,045.75

Finding the Fourth Proportional to 21,476.58, 29,639.16 and 12,045.75

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Solution

The fourth proportional to 21,476.58, 29,639.16 and 12,045.75 is: 16,623.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,476.58 : 29,639.16 = 12,045.75 : x
  2. Step 2: Convert to fraction form
    21,476.58/29,639.16 = 12,045.75/x
  3. Step 3: Cross multiply
    21,476.58x = 29,639.16 × 12,045.75
  4. Step 4: Simplify right side
    21,476.58x = 357,025,911.57
  5. Step 5: Solve for x
    x = 357,025,911.57/21,476.58
  6. Step 6: Final answer
    x = 16,623.96

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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.