Home / 23,270.40-32,109.44-15,315.84

Finding the Fourth Proportional to 23,270.40, 32,109.44 and 15,315.84

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Solution

The fourth proportional to 23,270.40, 32,109.44 and 15,315.84 is: 21,133.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,270.40 : 32,109.44 = 15,315.84 : x
  2. Step 2: Convert to fraction form
    23,270.40/32,109.44 = 15,315.84/x
  3. Step 3: Cross multiply
    23,270.40x = 32,109.44 × 15,315.84
  4. Step 4: Simplify right side
    23,270.40x = 491,783,045.53
  5. Step 5: Solve for x
    x = 491,783,045.53/23,270.40
  6. Step 6: Final answer
    x = 21,133.42

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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.