Home / 21,808.10-30,064.94-14,723.30

Finding the Fourth Proportional to 21,808.10, 30,064.94 and 14,723.30

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Solution

The fourth proportional to 21,808.10, 30,064.94 and 14,723.30 is: 20,297.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,808.10 : 30,064.94 = 14,723.30 : x
  2. Step 2: Convert to fraction form
    21,808.10/30,064.94 = 14,723.30/x
  3. Step 3: Cross multiply
    21,808.10x = 30,064.94 × 14,723.30
  4. Step 4: Simplify right side
    21,808.10x = 442,655,131.10
  5. Step 5: Solve for x
    x = 442,655,131.10/21,808.10
  6. Step 6: Final answer
    x = 20,297.74

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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.