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Finding the Fourth Proportional to 37,878.56, 56,779.56 and 15,661.28

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Solution

The fourth proportional to 37,878.56, 56,779.56 and 15,661.28 is: 23,476.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,878.56 : 56,779.56 = 15,661.28 : x
  2. Step 2: Convert to fraction form
    37,878.56/56,779.56 = 15,661.28/x
  3. Step 3: Cross multiply
    37,878.56x = 56,779.56 × 15,661.28
  4. Step 4: Simplify right side
    37,878.56x = 889,240,587.44
  5. Step 5: Solve for x
    x = 889,240,587.44/37,878.56
  6. Step 6: Final answer
    x = 23,476.09

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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.