Home / 21,479.02-29,634.06-12,045.76

Finding the Fourth Proportional to 21,479.02, 29,634.06 and 12,045.76

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Solution

The fourth proportional to 21,479.02, 29,634.06 and 12,045.76 is: 16,619.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,479.02 : 29,634.06 = 12,045.76 : x
  2. Step 2: Convert to fraction form
    21,479.02/29,634.06 = 12,045.76/x
  3. Step 3: Cross multiply
    21,479.02x = 29,634.06 × 12,045.76
  4. Step 4: Simplify right side
    21,479.02x = 356,964,774.59
  5. Step 5: Solve for x
    x = 356,964,774.59/21,479.02
  6. Step 6: Final answer
    x = 16,619.23

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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.