Home / 23,109.19-31,890.86-13,549.32

Finding the Fourth Proportional to 23,109.19, 31,890.86 and 13,549.32

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Solution

The fourth proportional to 23,109.19, 31,890.86 and 13,549.32 is: 18,698.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,109.19 : 31,890.86 = 13,549.32 : x
  2. Step 2: Convert to fraction form
    23,109.19/31,890.86 = 13,549.32/x
  3. Step 3: Cross multiply
    23,109.19x = 31,890.86 × 13,549.32
  4. Step 4: Simplify right side
    23,109.19x = 432,099,399.47
  5. Step 5: Solve for x
    x = 432,099,399.47/23,109.19
  6. Step 6: Final answer
    x = 18,698.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.