Home / 42,825.36-64,244.15-13,245.49

Finding the Fourth Proportional to 42,825.36, 64,244.15 and 13,245.49

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Solution

The fourth proportional to 42,825.36, 64,244.15 and 13,245.49 is: 19,870.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,825.36 : 64,244.15 = 13,245.49 : x
  2. Step 2: Convert to fraction form
    42,825.36/64,244.15 = 13,245.49/x
  3. Step 3: Cross multiply
    42,825.36x = 64,244.15 × 13,245.49
  4. Step 4: Simplify right side
    42,825.36x = 850,945,246.38
  5. Step 5: Solve for x
    x = 850,945,246.38/42,825.36
  6. Step 6: Final answer
    x = 19,870.12

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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.