Home / 23,181.13-31,984.59-15,641.45

Finding the Fourth Proportional to 23,181.13, 31,984.59 and 15,641.45

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Solution

The fourth proportional to 23,181.13, 31,984.59 and 15,641.45 is: 21,581.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,181.13 : 31,984.59 = 15,641.45 : x
  2. Step 2: Convert to fraction form
    23,181.13/31,984.59 = 15,641.45/x
  3. Step 3: Cross multiply
    23,181.13x = 31,984.59 × 15,641.45
  4. Step 4: Simplify right side
    23,181.13x = 500,285,365.26
  5. Step 5: Solve for x
    x = 500,285,365.26/23,181.13
  6. Step 6: Final answer
    x = 21,581.58

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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.