Home / 42,560.64-63,796.16-20,360.32

Finding the Fourth Proportional to 42,560.64, 63,796.16 and 20,360.32

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Solution

The fourth proportional to 42,560.64, 63,796.16 and 20,360.32 is: 30,519.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,560.64 : 63,796.16 = 20,360.32 : x
  2. Step 2: Convert to fraction form
    42,560.64/63,796.16 = 20,360.32/x
  3. Step 3: Cross multiply
    42,560.64x = 63,796.16 × 20,360.32
  4. Step 4: Simplify right side
    42,560.64x = 1,298,910,232.37
  5. Step 5: Solve for x
    x = 1,298,910,232.37/42,560.64
  6. Step 6: Final answer
    x = 30,519.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.