Home / 21,457.72-29,611.20-12,026.08

Finding the Fourth Proportional to 21,457.72, 29,611.20 and 12,026.08

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Solution

The fourth proportional to 21,457.72, 29,611.20 and 12,026.08 is: 16,595.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,457.72 : 29,611.20 = 12,026.08 : x
  2. Step 2: Convert to fraction form
    21,457.72/29,611.20 = 12,026.08/x
  3. Step 3: Cross multiply
    21,457.72x = 29,611.20 × 12,026.08
  4. Step 4: Simplify right side
    21,457.72x = 356,106,660.10
  5. Step 5: Solve for x
    x = 356,106,660.10/21,457.72
  6. Step 6: Final answer
    x = 16,595.74

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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.