Home / 20,672.08-30,848.42-18,457.04

Finding the Fourth Proportional to 20,672.08, 30,848.42 and 18,457.04

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Solution

The fourth proportional to 20,672.08, 30,848.42 and 18,457.04 is: 27,542.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,672.08 : 30,848.42 = 18,457.04 : x
  2. Step 2: Convert to fraction form
    20,672.08/30,848.42 = 18,457.04/x
  3. Step 3: Cross multiply
    20,672.08x = 30,848.42 × 18,457.04
  4. Step 4: Simplify right side
    20,672.08x = 569,370,521.88
  5. Step 5: Solve for x
    x = 569,370,521.88/20,672.08
  6. Step 6: Final answer
    x = 27,542.97

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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.