Home / 40,879.40-56,399.10-26,731.40

Finding the Fourth Proportional to 40,879.40, 56,399.10 and 26,731.40

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Solution

The fourth proportional to 40,879.40, 56,399.10 and 26,731.40 is: 36,879.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,879.40 : 56,399.10 = 26,731.40 : x
  2. Step 2: Convert to fraction form
    40,879.40/56,399.10 = 26,731.40/x
  3. Step 3: Cross multiply
    40,879.40x = 56,399.10 × 26,731.40
  4. Step 4: Simplify right side
    40,879.40x = 1,507,626,901.74
  5. Step 5: Solve for x
    x = 1,507,626,901.74/40,879.40
  6. Step 6: Final answer
    x = 36,879.87

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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.