Home / 20,410.46-28,167.52-11,457.50

Finding the Fourth Proportional to 20,410.46, 28,167.52 and 11,457.50

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Solution

The fourth proportional to 20,410.46, 28,167.52 and 11,457.50 is: 15,811.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,410.46 : 28,167.52 = 11,457.50 : x
  2. Step 2: Convert to fraction form
    20,410.46/28,167.52 = 11,457.50/x
  3. Step 3: Cross multiply
    20,410.46x = 28,167.52 × 11,457.50
  4. Step 4: Simplify right side
    20,410.46x = 322,729,360.40
  5. Step 5: Solve for x
    x = 322,729,360.40/20,410.46
  6. Step 6: Final answer
    x = 15,811.96

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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.