Home / 28,542.07-39,403.89-17,214.42

Finding the Fourth Proportional to 28,542.07, 39,403.89 and 17,214.42

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Solution

The fourth proportional to 28,542.07, 39,403.89 and 17,214.42 is: 23,765.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,542.07 : 39,403.89 = 17,214.42 : x
  2. Step 2: Convert to fraction form
    28,542.07/39,403.89 = 17,214.42/x
  3. Step 3: Cross multiply
    28,542.07x = 39,403.89 × 17,214.42
  4. Step 4: Simplify right side
    28,542.07x = 678,315,259.86
  5. Step 5: Solve for x
    x = 678,315,259.86/28,542.07
  6. Step 6: Final answer
    x = 23,765.45

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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.