Home / 40,785.06-56,223.81-28,827.30

Finding the Fourth Proportional to 40,785.06, 56,223.81 and 28,827.30

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Solution

The fourth proportional to 40,785.06, 56,223.81 and 28,827.30 is: 39,739.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,785.06 : 56,223.81 = 28,827.30 : x
  2. Step 2: Convert to fraction form
    40,785.06/56,223.81 = 28,827.30/x
  3. Step 3: Cross multiply
    40,785.06x = 56,223.81 × 28,827.30
  4. Step 4: Simplify right side
    40,785.06x = 1,620,780,638.01
  5. Step 5: Solve for x
    x = 1,620,780,638.01/40,785.06
  6. Step 6: Final answer
    x = 39,739.57

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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.