Home / 20,410.08-28,167.51-11,457.01

Finding the Fourth Proportional to 20,410.08, 28,167.51 and 11,457.01

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Solution

The fourth proportional to 20,410.08, 28,167.51 and 11,457.01 is: 15,811.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,410.08 : 28,167.51 = 11,457.01 : x
  2. Step 2: Convert to fraction form
    20,410.08/28,167.51 = 11,457.01/x
  3. Step 3: Cross multiply
    20,410.08x = 28,167.51 × 11,457.01
  4. Step 4: Simplify right side
    20,410.08x = 322,715,443.75
  5. Step 5: Solve for x
    x = 322,715,443.75/20,410.08
  6. Step 6: Final answer
    x = 15,811.57

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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.