Home / 42,291.72-63,438.62-14,212.18

Finding the Fourth Proportional to 42,291.72, 63,438.62 and 14,212.18

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Solution

The fourth proportional to 42,291.72, 63,438.62 and 14,212.18 is: 21,318.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,291.72 : 63,438.62 = 14,212.18 : x
  2. Step 2: Convert to fraction form
    42,291.72/63,438.62 = 14,212.18/x
  3. Step 3: Cross multiply
    42,291.72x = 63,438.62 × 14,212.18
  4. Step 4: Simplify right side
    42,291.72x = 901,601,086.39
  5. Step 5: Solve for x
    x = 901,601,086.39/42,291.72
  6. Step 6: Final answer
    x = 21,318.62

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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.