Home / 28,749.86-39,674.36-16,174.60

Finding the Fourth Proportional to 28,749.86, 39,674.36 and 16,174.60

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Solution

The fourth proportional to 28,749.86, 39,674.36 and 16,174.60 is: 22,320.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,749.86 : 39,674.36 = 16,174.60 : x
  2. Step 2: Convert to fraction form
    28,749.86/39,674.36 = 16,174.60/x
  3. Step 3: Cross multiply
    28,749.86x = 39,674.36 × 16,174.60
  4. Step 4: Simplify right side
    28,749.86x = 641,716,903.26
  5. Step 5: Solve for x
    x = 641,716,903.26/28,749.86
  6. Step 6: Final answer
    x = 22,320.70

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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.