Home / 18,399.15-27,457.23-18,293.90

Finding the Fourth Proportional to 18,399.15, 27,457.23 and 18,293.90

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Solution

The fourth proportional to 18,399.15, 27,457.23 and 18,293.90 is: 27,300.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,399.15 : 27,457.23 = 18,293.90 : x
  2. Step 2: Convert to fraction form
    18,399.15/27,457.23 = 18,293.90/x
  3. Step 3: Cross multiply
    18,399.15x = 27,457.23 × 18,293.90
  4. Step 4: Simplify right side
    18,399.15x = 502,299,802.76
  5. Step 5: Solve for x
    x = 502,299,802.76/18,399.15
  6. Step 6: Final answer
    x = 27,300.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.