Home / 40,785.08-56,285.12-22,879.60

Finding the Fourth Proportional to 40,785.08, 56,285.12 and 22,879.60

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Solution

The fourth proportional to 40,785.08, 56,285.12 and 22,879.60 is: 31,574.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,785.08 : 56,285.12 = 22,879.60 : x
  2. Step 2: Convert to fraction form
    40,785.08/56,285.12 = 22,879.60/x
  3. Step 3: Cross multiply
    40,785.08x = 56,285.12 × 22,879.60
  4. Step 4: Simplify right side
    40,785.08x = 1,287,781,031.55
  5. Step 5: Solve for x
    x = 1,287,781,031.55/40,785.08
  6. Step 6: Final answer
    x = 31,574.81

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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.