Home / 42,716.30-64,074.44-12,731.00

Finding the Fourth Proportional to 42,716.30, 64,074.44 and 12,731.00

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Solution

The fourth proportional to 42,716.30, 64,074.44 and 12,731.00 is: 19,096.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,716.30 : 64,074.44 = 12,731.00 : x
  2. Step 2: Convert to fraction form
    42,716.30/64,074.44 = 12,731.00/x
  3. Step 3: Cross multiply
    42,716.30x = 64,074.44 × 12,731.00
  4. Step 4: Simplify right side
    42,716.30x = 815,731,407.10
  5. Step 5: Solve for x
    x = 815,731,407.10/42,716.30
  6. Step 6: Final answer
    x = 19,096.49

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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.