Home / 28,116.72-42,149.16-14,262.48

Finding the Fourth Proportional to 28,116.72, 42,149.16 and 14,262.48

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Solution

The fourth proportional to 28,116.72, 42,149.16 and 14,262.48 is: 21,380.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,116.72 : 42,149.16 = 14,262.48 : x
  2. Step 2: Convert to fraction form
    28,116.72/42,149.16 = 14,262.48/x
  3. Step 3: Cross multiply
    28,116.72x = 42,149.16 × 14,262.48
  4. Step 4: Simplify right side
    28,116.72x = 601,151,551.52
  5. Step 5: Solve for x
    x = 601,151,551.52/28,116.72
  6. Step 6: Final answer
    x = 21,380.57

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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.