Home / 17,457.60-26,142.66-13,779.80

Finding the Fourth Proportional to 17,457.60, 26,142.66 and 13,779.80

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Solution

The fourth proportional to 17,457.60, 26,142.66 and 13,779.80 is: 20,635.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,457.60 : 26,142.66 = 13,779.80 : x
  2. Step 2: Convert to fraction form
    17,457.60/26,142.66 = 13,779.80/x
  3. Step 3: Cross multiply
    17,457.60x = 26,142.66 × 13,779.80
  4. Step 4: Simplify right side
    17,457.60x = 360,240,626.27
  5. Step 5: Solve for x
    x = 360,240,626.27/17,457.60
  6. Step 6: Final answer
    x = 20,635.17

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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.