Home / 42,944.40-64,416.60-21,949.20

Finding the Fourth Proportional to 42,944.40, 64,416.60 and 21,949.20

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Solution

The fourth proportional to 42,944.40, 64,416.60 and 21,949.20 is: 32,923.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,944.40 : 64,416.60 = 21,949.20 : x
  2. Step 2: Convert to fraction form
    42,944.40/64,416.60 = 21,949.20/x
  3. Step 3: Cross multiply
    42,944.40x = 64,416.60 × 21,949.20
  4. Step 4: Simplify right side
    42,944.40x = 1,413,892,836.72
  5. Step 5: Solve for x
    x = 1,413,892,836.72/42,944.40
  6. Step 6: Final answer
    x = 32,923.80

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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.