Home / 40,302.85-55,559.32-28,165.65

Finding the Fourth Proportional to 40,302.85, 55,559.32 and 28,165.65

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Solution

The fourth proportional to 40,302.85, 55,559.32 and 28,165.65 is: 38,827.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,302.85 : 55,559.32 = 28,165.65 : x
  2. Step 2: Convert to fraction form
    40,302.85/55,559.32 = 28,165.65/x
  3. Step 3: Cross multiply
    40,302.85x = 55,559.32 × 28,165.65
  4. Step 4: Simplify right side
    40,302.85x = 1,564,864,361.36
  5. Step 5: Solve for x
    x = 1,564,864,361.36/40,302.85
  6. Step 6: Final answer
    x = 38,827.64

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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.