Home / 28,474.39-42,710.52-8,752.43

Finding the Fourth Proportional to 28,474.39, 42,710.52 and 8,752.43

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Solution

The fourth proportional to 28,474.39, 42,710.52 and 8,752.43 is: 13,128.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,474.39 : 42,710.52 = 8,752.43 : x
  2. Step 2: Convert to fraction form
    28,474.39/42,710.52 = 8,752.43/x
  3. Step 3: Cross multiply
    28,474.39x = 42,710.52 × 8,752.43
  4. Step 4: Simplify right side
    28,474.39x = 373,820,782.19
  5. Step 5: Solve for x
    x = 373,820,782.19/28,474.39
  6. Step 6: Final answer
    x = 13,128.32

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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.