Home / 28,094.31-42,169.66-13,111.69

Finding the Fourth Proportional to 28,094.31, 42,169.66 and 13,111.69

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Solution

The fourth proportional to 28,094.31, 42,169.66 and 13,111.69 is: 19,680.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,094.31 : 42,169.66 = 13,111.69 : x
  2. Step 2: Convert to fraction form
    28,094.31/42,169.66 = 13,111.69/x
  3. Step 3: Cross multiply
    28,094.31x = 42,169.66 × 13,111.69
  4. Step 4: Simplify right side
    28,094.31x = 552,915,509.33
  5. Step 5: Solve for x
    x = 552,915,509.33/28,094.31
  6. Step 6: Final answer
    x = 19,680.69

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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.