Home / 40,741.72-56,118.40-28,784.30

Finding the Fourth Proportional to 40,741.72, 56,118.40 and 28,784.30

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Solution

The fourth proportional to 40,741.72, 56,118.40 and 28,784.30 is: 39,648.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,741.72 : 56,118.40 = 28,784.30 : x
  2. Step 2: Convert to fraction form
    40,741.72/56,118.40 = 28,784.30/x
  3. Step 3: Cross multiply
    40,741.72x = 56,118.40 × 28,784.30
  4. Step 4: Simplify right side
    40,741.72x = 1,615,328,861.12
  5. Step 5: Solve for x
    x = 1,615,328,861.12/40,741.72
  6. Step 6: Final answer
    x = 39,648.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.