Home / 42,660.84-63,975.06-20,460.36

Finding the Fourth Proportional to 42,660.84, 63,975.06 and 20,460.36

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Solution

The fourth proportional to 42,660.84, 63,975.06 and 20,460.36 is: 30,682.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,660.84 : 63,975.06 = 20,460.36 : x
  2. Step 2: Convert to fraction form
    42,660.84/63,975.06 = 20,460.36/x
  3. Step 3: Cross multiply
    42,660.84x = 63,975.06 × 20,460.36
  4. Step 4: Simplify right side
    42,660.84x = 1,308,952,758.62
  5. Step 5: Solve for x
    x = 1,308,952,758.62/42,660.84
  6. Step 6: Final answer
    x = 30,682.77

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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.