Home / 28,077.15-42,115.63-11,433.48

Finding the Fourth Proportional to 28,077.15, 42,115.63 and 11,433.48

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Solution

The fourth proportional to 28,077.15, 42,115.63 and 11,433.48 is: 17,150.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,077.15 : 42,115.63 = 11,433.48 : x
  2. Step 2: Convert to fraction form
    28,077.15/42,115.63 = 11,433.48/x
  3. Step 3: Cross multiply
    28,077.15x = 42,115.63 × 11,433.48
  4. Step 4: Simplify right side
    28,077.15x = 481,528,213.29
  5. Step 5: Solve for x
    x = 481,528,213.29/28,077.15
  6. Step 6: Final answer
    x = 17,150.18

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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.