Home / 21,586.10-29,790.95-12,633.07

Finding the Fourth Proportional to 21,586.10, 29,790.95 and 12,633.07

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Solution

The fourth proportional to 21,586.10, 29,790.95 and 12,633.07 is: 17,434.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,586.10 : 29,790.95 = 12,633.07 : x
  2. Step 2: Convert to fraction form
    21,586.10/29,790.95 = 12,633.07/x
  3. Step 3: Cross multiply
    21,586.10x = 29,790.95 × 12,633.07
  4. Step 4: Simplify right side
    21,586.10x = 376,351,156.72
  5. Step 5: Solve for x
    x = 376,351,156.72/21,586.10
  6. Step 6: Final answer
    x = 17,434.88

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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.