Home / 28,524.40-42,771.16-12,933.52

Finding the Fourth Proportional to 28,524.40, 42,771.16 and 12,933.52

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Solution

The fourth proportional to 28,524.40, 42,771.16 and 12,933.52 is: 19,393.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,524.40 : 42,771.16 = 12,933.52 : x
  2. Step 2: Convert to fraction form
    28,524.40/42,771.16 = 12,933.52/x
  3. Step 3: Cross multiply
    28,524.40x = 42,771.16 × 12,933.52
  4. Step 4: Simplify right side
    28,524.40x = 553,181,653.28
  5. Step 5: Solve for x
    x = 553,181,653.28/28,524.40
  6. Step 6: Final answer
    x = 19,393.28

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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.