Home / 21,457.85-29,611.37-12,026.21

Finding the Fourth Proportional to 21,457.85, 29,611.37 and 12,026.21

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Solution

The fourth proportional to 21,457.85, 29,611.37 and 12,026.21 is: 16,595.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,457.85 : 29,611.37 = 12,026.21 : x
  2. Step 2: Convert to fraction form
    21,457.85/29,611.37 = 12,026.21/x
  3. Step 3: Cross multiply
    21,457.85x = 29,611.37 × 12,026.21
  4. Step 4: Simplify right side
    21,457.85x = 356,112,436.02
  5. Step 5: Solve for x
    x = 356,112,436.02/21,457.85
  6. Step 6: Final answer
    x = 16,595.91

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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.