Home / 42,455.85-63,683.70-11,291.10

Finding the Fourth Proportional to 42,455.85, 63,683.70 and 11,291.10

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Solution

The fourth proportional to 42,455.85, 63,683.70 and 11,291.10 is: 16,936.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,455.85 : 63,683.70 = 11,291.10 : x
  2. Step 2: Convert to fraction form
    42,455.85/63,683.70 = 11,291.10/x
  3. Step 3: Cross multiply
    42,455.85x = 63,683.70 × 11,291.10
  4. Step 4: Simplify right side
    42,455.85x = 719,059,025.07
  5. Step 5: Solve for x
    x = 719,059,025.07/42,455.85
  6. Step 6: Final answer
    x = 16,936.63

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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.