Home / 23,182.72-31,970.08-15,231.68

Finding the Fourth Proportional to 23,182.72, 31,970.08 and 15,231.68

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Solution

The fourth proportional to 23,182.72, 31,970.08 and 15,231.68 is: 21,005.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,182.72 : 31,970.08 = 15,231.68 : x
  2. Step 2: Convert to fraction form
    23,182.72/31,970.08 = 15,231.68/x
  3. Step 3: Cross multiply
    23,182.72x = 31,970.08 × 15,231.68
  4. Step 4: Simplify right side
    23,182.72x = 486,958,028.13
  5. Step 5: Solve for x
    x = 486,958,028.13/23,182.72
  6. Step 6: Final answer
    x = 21,005.22

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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.