Home / 42,455.63-63,683.55-11,290.88

Finding the Fourth Proportional to 42,455.63, 63,683.55 and 11,290.88

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Solution

The fourth proportional to 42,455.63, 63,683.55 and 11,290.88 is: 16,936.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,455.63 : 63,683.55 = 11,290.88 : x
  2. Step 2: Convert to fraction form
    42,455.63/63,683.55 = 11,290.88/x
  3. Step 3: Cross multiply
    42,455.63x = 63,683.55 × 11,290.88
  4. Step 4: Simplify right side
    42,455.63x = 719,043,480.23
  5. Step 5: Solve for x
    x = 719,043,480.23/42,455.63
  6. Step 6: Final answer
    x = 16,936.35

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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.