Home / 28,364.82-42,551.55-13,561.62

Finding the Fourth Proportional to 28,364.82, 42,551.55 and 13,561.62

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Solution

The fourth proportional to 28,364.82, 42,551.55 and 13,561.62 is: 20,344.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,364.82 : 42,551.55 = 13,561.62 : x
  2. Step 2: Convert to fraction form
    28,364.82/42,551.55 = 13,561.62/x
  3. Step 3: Cross multiply
    28,364.82x = 42,551.55 × 13,561.62
  4. Step 4: Simplify right side
    28,364.82x = 577,067,951.51
  5. Step 5: Solve for x
    x = 577,067,951.51/28,364.82
  6. Step 6: Final answer
    x = 20,344.50

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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.