Home / 29,327.83-40,418.12-20,830.32

Finding the Fourth Proportional to 29,327.83, 40,418.12 and 20,830.32

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Solution

The fourth proportional to 29,327.83, 40,418.12 and 20,830.32 is: 28,707.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,327.83 : 40,418.12 = 20,830.32 : x
  2. Step 2: Convert to fraction form
    29,327.83/40,418.12 = 20,830.32/x
  3. Step 3: Cross multiply
    29,327.83x = 40,418.12 × 20,830.32
  4. Step 4: Simplify right side
    29,327.83x = 841,922,425.47
  5. Step 5: Solve for x
    x = 841,922,425.47/29,327.83
  6. Step 6: Final answer
    x = 28,707.29

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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.