Home / 29,275.68-40,406.40-19,847.28

Finding the Fourth Proportional to 29,275.68, 40,406.40 and 19,847.28

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Solution

The fourth proportional to 29,275.68, 40,406.40 and 19,847.28 is: 27,393.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,275.68 : 40,406.40 = 19,847.28 : x
  2. Step 2: Convert to fraction form
    29,275.68/40,406.40 = 19,847.28/x
  3. Step 3: Cross multiply
    29,275.68x = 40,406.40 × 19,847.28
  4. Step 4: Simplify right side
    29,275.68x = 801,957,134.59
  5. Step 5: Solve for x
    x = 801,957,134.59/29,275.68
  6. Step 6: Final answer
    x = 27,393.29

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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.