Home / 29,271.36-40,399.20-21,767.52

Finding the Fourth Proportional to 29,271.36, 40,399.20 and 21,767.52

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Solution

The fourth proportional to 29,271.36, 40,399.20 and 21,767.52 is: 30,042.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,271.36 : 40,399.20 = 21,767.52 : x
  2. Step 2: Convert to fraction form
    29,271.36/40,399.20 = 21,767.52/x
  3. Step 3: Cross multiply
    29,271.36x = 40,399.20 × 21,767.52
  4. Step 4: Simplify right side
    29,271.36x = 879,390,393.98
  5. Step 5: Solve for x
    x = 879,390,393.98/29,271.36
  6. Step 6: Final answer
    x = 30,042.69

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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.