Home / 29,266.92-40,388.40-15,838.20

Finding the Fourth Proportional to 29,266.92, 40,388.40 and 15,838.20

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Solution

The fourth proportional to 29,266.92, 40,388.40 and 15,838.20 is: 21,856.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,266.92 : 40,388.40 = 15,838.20 : x
  2. Step 2: Convert to fraction form
    29,266.92/40,388.40 = 15,838.20/x
  3. Step 3: Cross multiply
    29,266.92x = 40,388.40 × 15,838.20
  4. Step 4: Simplify right side
    29,266.92x = 639,679,556.88
  5. Step 5: Solve for x
    x = 639,679,556.88/29,266.92
  6. Step 6: Final answer
    x = 21,856.74

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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.