Home / 42,922.64-64,374.57-21,840.32

Finding the Fourth Proportional to 42,922.64, 64,374.57 and 21,840.32

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Solution

The fourth proportional to 42,922.64, 64,374.57 and 21,840.32 is: 32,755.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,922.64 : 64,374.57 = 21,840.32 : x
  2. Step 2: Convert to fraction form
    42,922.64/64,374.57 = 21,840.32/x
  3. Step 3: Cross multiply
    42,922.64x = 64,374.57 × 21,840.32
  4. Step 4: Simplify right side
    42,922.64x = 1,405,961,208.66
  5. Step 5: Solve for x
    x = 1,405,961,208.66/42,922.64
  6. Step 6: Final answer
    x = 32,755.70

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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.