Home / 21,457.83-29,622.17-14,299.66

Finding the Fourth Proportional to 21,457.83, 29,622.17 and 14,299.66

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Solution

The fourth proportional to 21,457.83, 29,622.17 and 14,299.66 is: 19,740.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,457.83 : 29,622.17 = 14,299.66 : x
  2. Step 2: Convert to fraction form
    21,457.83/29,622.17 = 14,299.66/x
  3. Step 3: Cross multiply
    21,457.83x = 29,622.17 × 14,299.66
  4. Step 4: Simplify right side
    21,457.83x = 423,586,739.85
  5. Step 5: Solve for x
    x = 423,586,739.85/21,457.83
  6. Step 6: Final answer
    x = 19,740.43

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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.