Home / 28,131.22-38,785.80-18,041.86

Finding the Fourth Proportional to 28,131.22, 38,785.80 and 18,041.86

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Solution

The fourth proportional to 28,131.22, 38,785.80 and 18,041.86 is: 24,875.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,131.22 : 38,785.80 = 18,041.86 : x
  2. Step 2: Convert to fraction form
    28,131.22/38,785.80 = 18,041.86/x
  3. Step 3: Cross multiply
    28,131.22x = 38,785.80 × 18,041.86
  4. Step 4: Simplify right side
    28,131.22x = 699,767,973.59
  5. Step 5: Solve for x
    x = 699,767,973.59/28,131.22
  6. Step 6: Final answer
    x = 24,875.14

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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.