Home / 42,344.12-63,540.79-18,970.56

Finding the Fourth Proportional to 42,344.12, 63,540.79 and 18,970.56

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Solution

The fourth proportional to 42,344.12, 63,540.79 and 18,970.56 is: 28,466.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,344.12 : 63,540.79 = 18,970.56 : x
  2. Step 2: Convert to fraction form
    42,344.12/63,540.79 = 18,970.56/x
  3. Step 3: Cross multiply
    42,344.12x = 63,540.79 × 18,970.56
  4. Step 4: Simplify right side
    42,344.12x = 1,205,404,274.29
  5. Step 5: Solve for x
    x = 1,205,404,274.29/42,344.12
  6. Step 6: Final answer
    x = 28,466.86

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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.