Home / 28,551.29-39,418.55-18,346.42

Finding the Fourth Proportional to 28,551.29, 39,418.55 and 18,346.42

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Solution

The fourth proportional to 28,551.29, 39,418.55 and 18,346.42 is: 25,329.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,551.29 : 39,418.55 = 18,346.42 : x
  2. Step 2: Convert to fraction form
    28,551.29/39,418.55 = 18,346.42/x
  3. Step 3: Cross multiply
    28,551.29x = 39,418.55 × 18,346.42
  4. Step 4: Simplify right side
    28,551.29x = 723,189,411.30
  5. Step 5: Solve for x
    x = 723,189,411.30/28,551.29
  6. Step 6: Final answer
    x = 25,329.49

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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.