Home / 18,261.65-27,457.68-16,818.23

Finding the Fourth Proportional to 18,261.65, 27,457.68 and 16,818.23

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Solution

The fourth proportional to 18,261.65, 27,457.68 and 16,818.23 is: 25,287.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,261.65 : 27,457.68 = 16,818.23 : x
  2. Step 2: Convert to fraction form
    18,261.65/27,457.68 = 16,818.23/x
  3. Step 3: Cross multiply
    18,261.65x = 27,457.68 × 16,818.23
  4. Step 4: Simplify right side
    18,261.65x = 461,789,577.51
  5. Step 5: Solve for x
    x = 461,789,577.51/18,261.65
  6. Step 6: Final answer
    x = 25,287.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.