Home / 37,755.72-56,637.90-12,787.20

Finding the Fourth Proportional to 37,755.72, 56,637.90 and 12,787.20

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Solution

The fourth proportional to 37,755.72, 56,637.90 and 12,787.20 is: 19,182.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,755.72 : 56,637.90 = 12,787.20 : x
  2. Step 2: Convert to fraction form
    37,755.72/56,637.90 = 12,787.20/x
  3. Step 3: Cross multiply
    37,755.72x = 56,637.90 × 12,787.20
  4. Step 4: Simplify right side
    37,755.72x = 724,240,154.88
  5. Step 5: Solve for x
    x = 724,240,154.88/37,755.72
  6. Step 6: Final answer
    x = 19,182.26

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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.