Home / 42,623.82-63,947.52-18,610.20

Finding the Fourth Proportional to 42,623.82, 63,947.52 and 18,610.20

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Solution

The fourth proportional to 42,623.82, 63,947.52 and 18,610.20 is: 27,920.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,623.82 : 63,947.52 = 18,610.20 : x
  2. Step 2: Convert to fraction form
    42,623.82/63,947.52 = 18,610.20/x
  3. Step 3: Cross multiply
    42,623.82x = 63,947.52 × 18,610.20
  4. Step 4: Simplify right side
    42,623.82x = 1,190,076,136.70
  5. Step 5: Solve for x
    x = 1,190,076,136.70/42,623.82
  6. Step 6: Final answer
    x = 27,920.45

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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.