Home / 21,485.25-29,649.65-12,053.61

Finding the Fourth Proportional to 21,485.25, 29,649.65 and 12,053.61

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Solution

The fourth proportional to 21,485.25, 29,649.65 and 12,053.61 is: 16,633.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,485.25 : 29,649.65 = 12,053.61 : x
  2. Step 2: Convert to fraction form
    21,485.25/29,649.65 = 12,053.61/x
  3. Step 3: Cross multiply
    21,485.25x = 29,649.65 × 12,053.61
  4. Step 4: Simplify right side
    21,485.25x = 357,385,257.47
  5. Step 5: Solve for x
    x = 357,385,257.47/21,485.25
  6. Step 6: Final answer
    x = 16,633.98

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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.