Home / 42,355.50-63,537.06-11,190.78

Finding the Fourth Proportional to 42,355.50, 63,537.06 and 11,190.78

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Solution

The fourth proportional to 42,355.50, 63,537.06 and 11,190.78 is: 16,787.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,355.50 : 63,537.06 = 11,190.78 : x
  2. Step 2: Convert to fraction form
    42,355.50/63,537.06 = 11,190.78/x
  3. Step 3: Cross multiply
    42,355.50x = 63,537.06 × 11,190.78
  4. Step 4: Simplify right side
    42,355.50x = 711,029,260.31
  5. Step 5: Solve for x
    x = 711,029,260.31/42,355.50
  6. Step 6: Final answer
    x = 16,787.18

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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.