Home / 42,698.49-63,994.28-20,507.73

Finding the Fourth Proportional to 42,698.49, 63,994.28 and 20,507.73

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Solution

The fourth proportional to 42,698.49, 63,994.28 and 20,507.73 is: 30,735.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,698.49 : 63,994.28 = 20,507.73 : x
  2. Step 2: Convert to fraction form
    42,698.49/63,994.28 = 20,507.73/x
  3. Step 3: Cross multiply
    42,698.49x = 63,994.28 × 20,507.73
  4. Step 4: Simplify right side
    42,698.49x = 1,312,377,313.25
  5. Step 5: Solve for x
    x = 1,312,377,313.25/42,698.49
  6. Step 6: Final answer
    x = 30,735.92

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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.