Home / 29,395.35-40,543.34-20,438.37

Finding the Fourth Proportional to 29,395.35, 40,543.34 and 20,438.37

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Solution

The fourth proportional to 29,395.35, 40,543.34 and 20,438.37 is: 28,189.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,395.35 : 40,543.34 = 20,438.37 : x
  2. Step 2: Convert to fraction form
    29,395.35/40,543.34 = 20,438.37/x
  3. Step 3: Cross multiply
    29,395.35x = 40,543.34 × 20,438.37
  4. Step 4: Simplify right side
    29,395.35x = 828,639,783.96
  5. Step 5: Solve for x
    x = 828,639,783.96/29,395.35
  6. Step 6: Final answer
    x = 28,189.49

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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.