Home / 40,638.21-55,956.11-35,574.09

Finding the Fourth Proportional to 40,638.21, 55,956.11 and 35,574.09

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Solution

The fourth proportional to 40,638.21, 55,956.11 and 35,574.09 is: 48,983.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,638.21 : 55,956.11 = 35,574.09 : x
  2. Step 2: Convert to fraction form
    40,638.21/55,956.11 = 35,574.09/x
  3. Step 3: Cross multiply
    40,638.21x = 55,956.11 × 35,574.09
  4. Step 4: Simplify right side
    40,638.21x = 1,990,587,693.19
  5. Step 5: Solve for x
    x = 1,990,587,693.19/40,638.21
  6. Step 6: Final answer
    x = 48,983.15

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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.