Home / 37,615.72-56,438.70-18,905.80

Finding the Fourth Proportional to 37,615.72, 56,438.70 and 18,905.80

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Solution

The fourth proportional to 37,615.72, 56,438.70 and 18,905.80 is: 28,366.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,615.72 : 56,438.70 = 18,905.80 : x
  2. Step 2: Convert to fraction form
    37,615.72/56,438.70 = 18,905.80/x
  3. Step 3: Cross multiply
    37,615.72x = 56,438.70 × 18,905.80
  4. Step 4: Simplify right side
    37,615.72x = 1,067,018,774.46
  5. Step 5: Solve for x
    x = 1,067,018,774.46/37,615.72
  6. Step 6: Final answer
    x = 28,366.30

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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.