Home / 42,435.35-63,660.78-13,973.92

Finding the Fourth Proportional to 42,435.35, 63,660.78 and 13,973.92

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Solution

The fourth proportional to 42,435.35, 63,660.78 and 13,973.92 is: 20,963.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,435.35 : 63,660.78 = 13,973.92 : x
  2. Step 2: Convert to fraction form
    42,435.35/63,660.78 = 13,973.92/x
  3. Step 3: Cross multiply
    42,435.35x = 63,660.78 × 13,973.92
  4. Step 4: Simplify right side
    42,435.35x = 889,590,646.86
  5. Step 5: Solve for x
    x = 889,590,646.86/42,435.35
  6. Step 6: Final answer
    x = 20,963.43

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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.