Home / 23,240.50-34,987.20-21,173.79

Finding the Fourth Proportional to 23,240.50, 34,987.20 and 21,173.79

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Solution

The fourth proportional to 23,240.50, 34,987.20 and 21,173.79 is: 31,875.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,240.50 : 34,987.20 = 21,173.79 : x
  2. Step 2: Convert to fraction form
    23,240.50/34,987.20 = 21,173.79/x
  3. Step 3: Cross multiply
    23,240.50x = 34,987.20 × 21,173.79
  4. Step 4: Simplify right side
    23,240.50x = 740,811,503.49
  5. Step 5: Solve for x
    x = 740,811,503.49/23,240.50
  6. Step 6: Final answer
    x = 31,875.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.