Home / 40,739.71-56,115.64-28,782.29

Finding the Fourth Proportional to 40,739.71, 56,115.64 and 28,782.29

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Solution

The fourth proportional to 40,739.71, 56,115.64 and 28,782.29 is: 39,645.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,739.71 : 56,115.64 = 28,782.29 : x
  2. Step 2: Convert to fraction form
    40,739.71/56,115.64 = 28,782.29/x
  3. Step 3: Cross multiply
    40,739.71x = 56,115.64 × 28,782.29
  4. Step 4: Simplify right side
    40,739.71x = 1,615,136,624.02
  5. Step 5: Solve for x
    x = 1,615,136,624.02/40,739.71
  6. Step 6: Final answer
    x = 39,645.27

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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.