Home / 21,495.15-32,058.96-18,879.86

Finding the Fourth Proportional to 21,495.15, 32,058.96 and 18,879.86

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Solution

The fourth proportional to 21,495.15, 32,058.96 and 18,879.86 is: 28,158.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,495.15 : 32,058.96 = 18,879.86 : x
  2. Step 2: Convert to fraction form
    21,495.15/32,058.96 = 18,879.86/x
  3. Step 3: Cross multiply
    21,495.15x = 32,058.96 × 18,879.86
  4. Step 4: Simplify right side
    21,495.15x = 605,268,756.69
  5. Step 5: Solve for x
    x = 605,268,756.69/21,495.15
  6. Step 6: Final answer
    x = 28,158.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.